2013年8月28日星期三

Crop injury prevention and rescue

As a result of improper use of pesticides crop phytotoxicity , our country has an impact on crop yield and quality and safety of agricultural products of major risks.

Improper use of pesticides why the injury occurred

Synthetic pesticides used insecticide and disease prevention, to kill weeds , because of its affinity with the crop itself is not , it will affect crop metabolism, reduce crop immune function . Therefore, the improper use of pesticides causes crops difficult to find the hidden tag of injury or injury , will inhibit crop growth , leading to malnutrition.

To sum up, there are four issues that affect the rational use of pesticides , one pharmaceutical quality , the second is the use of technology , three are standard spraying machine , garden pressure sprayer spraying machine 4 is to regulate the use of technology . In addition, the natural environmental conditions such as low temperature , high temperature and drought , salinity and other effects , can lead to injury incurred or aggravated injury.

Types of injury

Pesticide phytotoxicity divided recessive injury and expressive injury. Recessive injury is caused by the absorption of pesticides , phytotoxicity symptoms generally obvious, often at low temperatures inhibit the performance of crop growth , dark green leaves , and then when the temperature leggy , greed green late , resulting in crop yield and quality decreased . Performance of herbicide injury symptoms, easily recognizable , trigger sprayer spraying in high temperature conditions typically exhibit leaves burns spots, leaves Kujiao other symptoms.

Sprayers and spraying techniques using point

To ensure trouble-free use and prolong the life of sprayers , and in order to ensure the safety of staff . Sprayer before and after use be sure to make the appropriate checks in the process of spraying pesticides should follow certain precautions.

To check the sprayer before operation of the parts for damage, without leakage, spray is normal , the first trial with agricultural sprayers water spray .

Spraying pesticides , the operator should stand upwind , and pay attention to changes in wind direction , way of walking time to change jobs , try to forward interlaced spraying.

Knapsack sprayer tank can not be overfilled to avoid bending when the liquid from the medicine chest mouth overflow spilled into the spraying people. Select the correct application time should avoid weed sprayer spraying at noon when the sun is strong , because when pesticides , volatile, and the operator sweating, pesticides easily into the body through the pores .

Spraying equipment in the course of the event of failure , should immediately stop work , close the valve , inspect repairs. If it is a pipe or pump sprayer fails, you must first reduce the pressure in the pipeline . Open the pressure in the gas tank , you should first release the compressed air cylinder , to prevent accidents.

After each use , the barrel should be promptly poured the remaining liquid, and washed with water poured dry .

2013年8月27日星期二

Buy farm machinery to look at the appearance of

In assessing the quality of agricultural machinery products , in general , the product appearance quality to some extent reflects the intrinsic quality of the product . Can also be seen from the external observation of the quality of product is good or bad .garden water sprayer  The general appearance of agricultural machinery requirements are:

1 ) Products should be no bump, damage, and refurbishment of signs , painted some places can not have missing paint , primer for ferrous materials must be rust .

2 ) The seam welds should be smooth and firm.

3 ) with fuel, lubricating oil , liquid , water and other liquid containers, pipes , fittings , etc. tight , there can penetrate , leaky places . Pneumatic device containers , pipes, fittings , etc., can not leak . Sealing surface can not have a drop of oil leakage , various parts of the gap to be consistent.

4 ) castings should be no holes, blisters, burrs, plastic colors, the wall thickness should be uniform , box , etc. garden water sprayer are not allowed cracks , tires, V-belts and other rubber parts without aging and deformation.

5 ) are not adjusting screws or screw application after immersion tighten the screw nut is threaded at one end exposed outside the plane , at least two screw buckle, but can not exceed l0mm. All non-adjusting screws , bolts, nuts should be tightened indeed , according to the provisions of the locking means ( locking nuts, cotter pins , wire , washers, etc. ) locking . All adjustments of agricultural machinery , precise and reliable lubrication part ; all rotate , Transmission and control devices operating flexibility without catching place .

6 ) The whole machine should be no distortion ; throughout parts intact.

Checking the information is complete

Agricultural random data including " Four Pass " and " a book, a card, a ticket"

1 . " Four card"

First, the production permit. Production license is the country 's higher security requirements of a mandatory electronic products management measures implemented . Issued by the state of agricultural production permit, valid for five years. Corporate self-developed new products, apply for temporary production license, valid for six months.

Second, agricultural extension license. Ministry of Agriculture, agricultural extension licenses are taken to safeguard the interests of farmers of a management measure. It is divided into two kinds of ministerial and provincial level , voluntary application by the manufacturer . Ministerial permit the promotion issued by the Ministry of Agriculture , the provincial marketing licenses issued by the provincial agricultural department for a period of 3 to 5 years.

Third, the product certification . It is the agricultural machinery factory , the quality control personnel according to national standards or enterprise standards inspection , issued by the enterprises themselves products certification. Its contents in general are: farm name , product name , number of inspectors , inspection date. Product quality is directly related to the work of agricultural machinery reliability and service life. With the current agricultural development of agricultural machinery products, high demand , there have been some shoddy products, to bring users undue loss , not only damaged machinery, and may cause personal injury or death , such as some chaff cutter machinery, threshing machinery , crushing machinery. So in the purchase of agricultural machinery , the stereotypes have been identified should be purchased ( department or provincial , municipal ) products, especially those that vote after winning ( gold , silver , Quality Award ) products, do not buy any department without identification stereotypes, no product certification of products.

Fourth, the " three guarantees" certificate. Regular production of the product has a " three guarantees" certificate , which is when the sale of agricultural products sold to the user 's document or certificate is the agricultural use of quality problems or failure of its packaging to user requirements , replace or return basis. Its content, including product name, size , type, farm numbers , manufacturers and repairers name, address ,agricultural sprayer  phone number , zip code , the whole " three guarantees" period and the main parts " three guarantees" period , repair records. Perfect "three guarantees" service is the product of effective protection that can lift the user 's worries.

2 . " One book, one card, one vote"

"Book " is the product manual. It includes product type, name, perform standard number, security warnings , the model implications , the main scope , the main technical parameters, performance and maintenance, failure and exclusion and so on. Among them, the warnings to highlight the representation ; production company address and other documents with the consensus on the nameplate . If there is no manufacturer address, hand pump sprayers or contact phone just a phone number , such products are often non -formal production and should not be optional .

" A card" is the product nameplate . Nameplate on product name, model number, main technical parameters, implementation of standards and the production company's name , address , telephone number , zip code , and product serial number, date of manufacture , etc. to complete.

"One vote " is a sales unit formal invoice . This is the future, households purchase rights valid certificate , you must save it after purchase .

2013年8月26日星期一

How to clean Agricultural Equipments

First, pesticides

1, the general use of pesticides after repeated washing with water, upside down to dry.

2, on the toxicity of pesticides, with muddy water available after repeated cleaning, upside down to dry.

Second, herbicides

1, water cleaning: wheat herbicides superstar (tribenuron), corn herbicide B Ahe China Mobile agricultural ICT website agent, soybean, peanut herbicides such as haloxyfop, rice fields scavenger God hoe, bentazon etc., is finished, to be immediately cleaned with water buckets and various parts several times, and then soaked in water for 2-24 hours filled trigger sprayer, cleaning 2-3 times, you can rest assured that use.

2, mud cleaning: For g Wang trace (commonly known as sweep away the light) can be met efficacy of soil, which in the finished, just wash immediately with mud and water will perfume sprayer spray a few times, and then water to wash. 3, ferrous sulfate scrubbing: herbicides, only 2,4-d-butyl hardest to clean. After the spraying, need 0.5% ferrous sulfate solution fully wash, and conduct safety tests before reloading other herbicides.

Dry foam carpet cleaning routine methods of operation

Cleaning Precautions:

Check motor control, with particular attention to electrical plugs and wires.

Various parts of the machine installed only after the power plug into the socket.

Thrown as far as possible the wires behind the machine.

Before starting work, check whether the sticky carpets and rugs tight whether bleaching.

The wooden and iron furniture, paper cards and carpet separated.

Inside the vacuum cleaner and wipe clean all parts.

Will hand brush and scrub brush machine wash.

The washing machine water tank to be drained, wipe clean.

Cleaning spray.

Cleaning bucket, wipe after handstand storage.

Conventional cleaning methods:

Gather the required tools a while checking equipment is intact. Check the motor's electrical plugs, wires and so on.

Two signs will be placed in a conspicuous place.

Three try to move away furniture.

Four carpet surface using a vacuum cleaner to suck the dust.

Five if the carpet is not entirely artificial, carpet cleaning before checking whether all corners sticking tight.

Six with a white cloth or white paper towels stained water cleaner is not in a discreet corner, try to check whether the carpet discoloration.

Seven carpet if stains removed with detergents.

Eight of the furniture will not move away with a tissue paving.

Nine label according to manufacturer instructions, the amount of the bucket cleaning agent to clean water, and then with a good reference detergent into the washing machine tank, the remaining into the sprayer.

Ten compared with a sprayer to spray on the dirty part of pre-cleaning solution.

Eleven will open all doors and windows.

Twelve if necessary, with a pressure sprayer to wet the brush scrubbing machine.

Thirteen entrances and exits from the most distant from the start, using the method of overlapping back and forth, careful not to make the carpet too wet.

2013年8月25日星期日

Nozzle arrangement and selection

Arrangement of sprinklers shall cover the surface of hazardous materials to be protected, the number should be based on a single nozzle sprinkler coverage, application height, pitch and protection of objects to determine mist layout should follow the principles of object overwrite protection, while meeting the fruit tree sprayer spray strength requirements.

1, should be based on protection zone height, area, type of fire, the protected object appearance and reasonable choice extinguishing system type nozzle.

2, total flooding system nozzle should be a rectangular, square or diamond-shaped arrangement of the protection zone at the top of a balanced, appropriate for high spatial hierarchical arrangement.

3, the local system should be balanced nozzles arranged around the object to be protected, for higher hierarchical arrangement of objects should be.

Ten, the amount of water required for fire-fighting

Water volume required fire determined as follows:

Single nozzle flow q = k

(Single nozzle flow nozzle Flow coefficient is equal to 10 times by the square root of the nozzle working pressure)

P-nozzle pressure Mpa

K-Nozzle Flow coefficient

System design flow Qj = 1/60

(System design flow rate equal to the system starts the same time open the flow and spray nozzle)

Qj-system design flow (L / s)

N-system starts at the same time the number of manual sprayer spray mist nozzle

Qi-spray nozzle of the actual flow rate (L / min), shall be the actual working pressure spray nozzle

Water system

W = QjXt (L)

W-system water (L)

T-mist injection time (min)

(Equal to the water system by system design flow and water mist injection time)

System storage capacity

Wc = W (L)

Preset storage capacity of water mist fire extinguishing system must be based on the manufacturer's technical criteria.

Water mist system development

Water mist fire suppression technology in the application of fire began in the 1940s, which was mainly used for special places, such as transport and so on. At that time, water sprinkler technology development and research as the main direction of water mist fire suppression technology has not been studied in depth, it has been developing more slowly.back pack sprayers As science and technology progress, the people fighting against the concept of change, especially found Halon fire extinguishing agent has damaging effects on the ozone layer as well as in 1987 after the signing of the Montreal Protocol, halon fire suppression technology as one of the main alternatives get all the attention and favor. Water mist fire suppression technology in the 1990s before they get leap development.

Many developed countries (mainly Europe and the United States, Japan and other countries) they experienced many years of theoretical and applied research, experimental exploration after it has been successively developed a variety of types of water mist system. And have been widely applied in the relevant fields and places, home garden sprayer there are products to enter the domestic market, and some have been put into use.

China began in the late 1990s, water mist systems for research and development and testing work, tied for the national "Ninth Five" scientific and technological projects. The main reference to U.S. NFPA750 standards combined with China to carry out the practical application of research and development work, have developed so far have been the appropriate water mist system, there are products asked the city.

2013年8月23日星期五

Ultra low volume sprayer after use guidelines

After each use, to the tank, the residual liquid infusion tube release, the whole machine wipe clean; chemical sprayer spray after the operation, in custody prior to collection, in addition to the tank, the liquid inside a clean residual oil poured outside , but also a comprehensive cleaning, metal parts to rust oil painting, and then kept in the shade.

Faults and troubleshooting ① reduce the amount of spray or not to home garden sprayer spray. Repair, if found to be incorrect throttle valve spool position can be a good re-spool position; infusion switch if they are blocked, the infusion should be cleaned switch; throttle orifice if they are clogged, clean the throttle valve Kong; the case of the liquid-axis head clogging infusion should be cleaned shaft hole; if they are not pressurized tank or leak, refillable pressurized connector with the notch toward the fan; the case of tank lid is not tightened should be re-tighten the tank lid. ② obviously thick fog particles or transfer cage speed is low. If found to be gasoline engine speed is not enough, you should adjust or repair gasoline; cage bearing the case of oil, and add lubricant bearings should be cleaned; if they are bearing wear, should be replaced with new bearings; tumble if they are clogged or broken nylon nets should be cleaned or replaced grille.

Flowers, leaves, cleaning and maintenance

Potted plants, especially large leaf foliage plants, they are placed in the process is always easy to absorb dust, dirt can clog the one hand, the pores on the leaves, so that plants can not absorb moisture from the air and oxygen or excess body evaporation of moisture to the outside world; On the other hand, the dust will make potted plants look depressed, even after the water is soiled, it is very unsightly. Therefore, not only for the routine maintenance of potted plants pest illnesses should also be timely removal, so as to allow the natural green space to show its elegant style, clean indoor air also benefit.

1, the cleaning blade of the time

The time for the morning cleaning blade, the blade in the night before the arrival of sufficient drying time, so as to avoid the lack of sunlight and temperature drops at night, the leaves produce a time in a humid environment.

2, the cleaning blade is

Spray method using water agricultural sprayers spray impact will wash away the dust on the leaves.

Swab dipped in water with a sponge or cloth repeatedly leaves gently wipe the dust sludge.

Method using a soft brush to brush the dust on the brush clean blades

Note: The first two methods are not suitable cactus, mostly meat and leaves of plants with fluff. Once the blade is difficult to evaporate water wet after that use a dry cloth to absorb moisture and can not guarantee that a certain period of time to dry. And some fear of water, such as gerbera flower buds foliage buds, Clivia foliage pseudobulbs are not wet, especially in the germination and bud stage, water will affect the development of flowers.

Also do not hand sprayer spray water directly on the flowers. Water perishable flowers, withered, it will result in poor fertilization, affecting flowering. Pomegranate, crabapple, crape myrtle and other potted fuchsias and water will cause the blade leggy branches, the latter two recommended cleaning method.

2013年8月22日星期四

Washed velvet sofa fabric sofa and methods can not be removed

 Professional sofa cleaning company cleaning sofa specification and operation:

Including a variety of leather and fabric sofa. Sofa treatment is steam sauna, high temperature washing machines, vacuum suction machine, with special disinfection, decontamination agents on the sofa steam mites and insects, sterilization, decontamination foam cleaning, vacuum suction machine suction water, dried, and finally sprayed with anti-fouling agent processing, the sofa surface water film, to waterproof and dustproof effect.

Use tools and materials

A water pumping wash (can be suitable fabric sofa)

Equipment: Sofa brushes, sprayers, suction machine, sauna, high temperature cleaning machines.

Use material agents: High foam addition to stains.

Methods of operation:

1, with full vacuum cleaner

2, diluted detergent into the water tank

3, on the sofa round bottle sprayer spray cleaner

4, for 10-15 minutes, the stain from the fibers

5, with sauna, high temperature cleaning machines are used interchangeably, at least after two pumping wash

6, in cleaning the sofa, with a net absorption of water has been washing the sofa

7, so that the sofa is completely dry, to speed dry sofa, sofa can be switched dryer.

Clean the roof should be particularly soft

Roof dirt usually accumulate visible place, coupled with high temperatures in summer rain fermentation, will make people felt very depressed. Roof cleaning methods should be based on headliner material, different colors and treated differently. If not timely cleaning, hand sprayerspermanent stains may occur, and if cleaned improperly, it may damage the roof, such as roof off the fabric surface.

Light-colored velvet seats headliner fabric cleaners should be used. Cleaning should be preceded by the seats prostrate, then towel or chair cover to cover, to prevent the roof dripping water or detergent contamination. And then poured into water and portable sprayers spray detergent liquid, spraying the roof. After a little foaming cleanser gently scrub with a brush. Note that using a soft brush and lighter than the intensity, or easy to pilling, but also hurt the roof. Wait until the dirt floating on the surface, then use a towel wrung wipe the foam. The rest of the dirt, can be removed with detergent.

If the material is a vinyl roof, there is usually a lot of small surface pits. The roof of this material is easier than the fabric roof falling dust, but as long as no incorporation of silicone glass cleaner can remove dirt.

Dark lines headliner want to check the extent of its dirty, just use a clean wet towel and gently wipe the surface of the can. If the stick is above the white towel brown dirt, which means that the roof has been dirty. No matter what kind of car every two to three months can use this method check again. If you find that you can wipe clean with a wet towel, then I need to use a cleaning agent.

2013年8月19日星期一

Classification of water mist extinguishing system

Mist nozzles, containing one or more orifices, means can be atomized droplets, which is the most critical parts of the system. Produce water mist nozzles principle particles of the following five methods, the liquid with respect to the surrounding air is released at high speed, because the speed difference between the liquid and air and water particles to be shredded; liquid touch to a fixed surface, to produce water particles due to collision; two shares a similar flow components collide particles per water flow are formed; electronic ground vibration or liquid particles into water (ultrasound and electrostatic atomizer); liquid in a pressure vessel is heated to above its boiling point, atmospheric pressure is suddenly released to the state (liquid spray burst).

According to different standards of water mist systems can be divided into the following systems:

Low pressure system, the working pressure is less than 12.1bar (175psi *); medium voltage systems, working pressure 12.1bar (175psi) ~ 34.5 bar (500 psi); pressure systems, working pressure greater than 34.5bar (500psi).

Local Application System (Local Application Systems), such as protection of steam turbine bearings, refinery heat pumps; total flooding systems (Total Flooding Application Systems), to protect the entire protected area, such as gas turbine engine room.

Prefabricated systems (Preengineered Systems), such as compressed gas cylinders driven Shuangliu systems, cylinder and tank has several kinds of specifications, are processed in the factory, the design size of the area under the protection zone to choose; Engineering Systems (Engineered Systems) , its composition and working methods similar to conventional deluge system (Deluge Systems).

Single-stream media system (Single Fluid Media Systems) and dual media garden sprayers  spray system (Twin Fluid Media Systems). Single-stream media system is the only water as the extinguishing agent supply pipe to the nozzle by the way. System consists of a nozzle, water pump deluge valves, detectors and controller. Double medium spray system, water and atomizing medium are supplied by different lines, and in the mixing nozzle, the collision produces water particles, the shape of the liquid sprayer spray nozzle shown in Figure 3. Atomizing medium is divided into two parts, one for pushing water storage tank, and the other way directly supplied to the nozzle. Water storage tank at atmospheric pressure, fire pushed by the high-pressure gas into the protected area. Atomizing medium is mixed with water and can produce a high pressure water mist air or other gases.

Look Sprayer Market

knapsack power sprayer: market prospects
Knapsack power sprayer compared with manual sprayers has many advantages: Spray stable and reliable performance, long service life, the use of a wide range of labor-saving, high efficiency. Although the current high prices, market competitiveness in general, but with the economic development and increase the income of farmers and plant protection services are increasingly socialized, Knapsack motorized (electric) sprayer will have a larger space for development.
In the survey, a reporter was impressed by the technical support of the United States, the latest launch of the third generation of intelligent high pressure sprayer champion, according to the staff, said the aircraft as ordinary electric sprayer overcome many defects, since Earlier this year, the market has already sold nearly 30 provinces, municipalities, and exports of Vietnam and other countries. A Jiangsu merchants pleased to say that this product is still sold well, people feel good with the latter, pressure, good atomization, high efficiency, playing in just a few cents a dose, simulate human back box with curved design , burdened by feeling comfortable, the most critical is fully sealed lid, saying that he would spot the entire drug inverted bucket full of liquid, even leak, drew bursts of applause sidelines friends of farmers.

2013年8月18日星期日

Mechanical grape plant protection

More harm grape pests, the main control object is: downy mildew, powdery mildew, anthracnose, white rot, anthracnose, felt sick, and spider mites, beetles, leafhoppers and so on. Depend on the incidence of the prevention-oriented, integrated control principle, to take timely, safe, efficient, low toxicity, low-residue, Lee Green mechanical control measures is to achieve high-quality grape yield, the key to the implementation of pollution-free green food production .
Grape pest control as many as a dozen of the growing period, heavy workload, poor working conditions, is my area of ​​choice for the implementation of orchard production mechanization operation items that breakthrough. Over the years, we have focused on the promotion of plant protection machinery is advanced piston diaphragm pumps. The pump is a double-acting piston reciprocating a trip that, under the action of the diaphragm, enabling two suction work process. Which has a flow, high pressure, small size, compact structure, strong corrosion resistance, easy operation and maintenance, easy and micro-farming machines and other supporting the use of force. Its greatest feature is no moving parts in contact with the liquid can be short-term dehydration (fluid) operation, to overcome the "36" series pumps ills. In addition, we also promote the introduction of a knapsack sprayer duster to gradually replace the water power sprayer, the two plant protection equipment, common features are: high efficiency, efficiency of 10 acres or more days. Nozzle with supporting the use of high-quality, good atomization, droplet is small, can implement a low volume spray. High pressure (air volume) to make grape leaves evenly on both sides of the drug, the control effect is good. Compared with manual sprayers nearly 10 times to improve efficiency, improve the control effect of 10% or more, Mushi dose reduced by 20%, especially if the ear of sprayer spraying pesticide residues in fruit small and low, very conducive to the production of pollution-free green food , thereby increasing brand Grape Chadian market share and competitiveness, is my area vineyard fields more than 4,000 units of motor Equipments, machinery plant protection level of 80% or more.

Precautions in the use of pesticides

1, dispensing, dispensing personnel should wear rubber gloves must be used in accordance with the prescribed measuring liquid or powder dosage said dispensary shall be arbitrarily increased usage. Prohibited by hand to mix drugs.

2, seed use tools stirring, how much, how much mix, mix over the drug should be used seed sowing machines. Such as hand or point spread seed must wear protective gloves to prevent skin absorption poisoning. The remaining toxic species should be destroyed, not allowed to be used as food rations or feed.

3, pharmaceutical and seed should be selected away from drinking water sources, settlements safe place, there must be supervised to prevent pesticides, toxic species lost or people, livestock, poultry eating.

4, the use of drugs should be interlaced sprayer spray jet. Equipments manual and motorized spray can not be on both sides simultaneously. Winds and midday heat should stop spraying. Medicine liquid can not be overfilled bins, so shake out barrels, the pollution of the body application personnel.
 
5, should be carefully examined before portable sprayers spraying the beginning Equipments pick off, sprinklers, etc. screws are tightened, drug barrels leaks to prevent leakage drug contamination. Spraying process, such as clogging, should be washed with water Xian after troubleshooting. Absolute prohibition of mouth pipetting nozzles and filters.

6, the application of high toxic pesticides should be established where signs prohibit within a certain time grazing, mowing, digging wild, poisonous weeds to prevent humans and animals.
7, after the end of treatment, to promptly clean the nebulizer, together with the return of the remaining pharmaceutical warehouse storage, should not be allowed to go home. Cleaning Equipments sewage should choose a safe place to properly handle, are not allowed anywhere spill to prevent contamination of drinking water sources and fishpond. Sheng Guo pesticide packaging materials, are not allowed to use sheng of grain, oil, wine and other food and feed. Installed over empty pesticide containers, bottles, bags, etc. should be centralized. Soaking tanks used to wash central depository.

2013年8月16日星期五

Problems in orchard spraying

1 arbitrarily increase concentration, close spraying effect solution uniform coverage spraying some friends of farmers affected by bad habit, difficult to control pests and diseases encountered often only increased the dosage, without increasing the amount of water, causing the liquid concentration increased, and the liquid is less difficult in fruit bottle sprayer sprayed uniformly thoughtful, affecting control effect, and even cause injury. Some growers in the spraying nozzle too close with fruit trees, fruit trees leaves under the impact of high pressure are turned up, so easily damaged fruit surface.

(2) spraying pesticides like some fruit trees that drug wash spray the better, like to spray fruit trees have leaves dripping, thinking that we go. But just the opposite, worms down not by flushing with fresh water, but by the suction, tag, fumigation and to kill, and a large easy to make water plant stomatal closure, but absorb less water and more, this spraying method waste, investment large, poor results. And easy to make fruit calyx dip too much liquid at the plot, the long-term accumulation likely to cause injury, affecting fruit quality.

3 sprayer pressure is too small, motorized  tree sprayer nozzle is too large, poor atomization, resulting in reduced droplet density is taken sprayer hydraulic atomization, spray some domestic enterprises, especially some small production companies due to their technical limitations, mainly the production of pressure sprayer. Farmers spraying pesticides in small, often due to the pressure caused by the crown, not spray within the Church, forming leak spray, motorized sprayer takes the pneumatic atomization, some farmers friends in order to save time, especially some of the staff in order to provide paid services to improve spraying efficiency, often intentionally poke the nozzle orifice gasket big, not knowing that after such a transformation is to improve efficiency, but the atomization effect is reduced, will inevitably affect the control effect.

Introduction of low volume spraying

Low volume spraying, also known as micro-spray, is the use of motorized sprayer DFH type 18, with water or oil as the carrier, the concentration of pesticides in 3-10%, per acre knapsack sprayer spray volume of 0.5 to 2.5 liters, the droplet diameter 80-150 microns, a cumulative spray drift. Less water for a large area pest control, does not apply to agricultural chemical weeding. Micro-spray rain erosion resistant, long duration of advantages, but by the climate impact, spray drift loss of large, relatively strict application techniques, could easily lead to crop injury and livestock poisoning, not commonly used in pest control.

ULV

ULV, also known as micro-spray, is the use of DFH 18 type motor plus ultra low volume sprayer nozzle spray to oil or water as the carrier, pesticide concentration 10-60% per acre chemical sprayer spray volume from 0.15 to 0.5 l, the median droplet diameter of 15 to 75 microns, is a cumulative spray drift. For small water areas, explosive pest control, chemical weed control can not be used for farmland. With high efficiency, saving pesticides, prevention and treatment in a timely manner, without water advantages, but strict operating techniques, the droplet by the flow impact, improper application will produce injury.

2013年8月15日星期四

We selected agricultural methods are not grasped

Check the appearance of the product: From all directions around to see the whole machine has no distortion. There is no rust where sheet metal is not smooth, there is no leakage of paint, paint flow, without casting porosity, blisters, burrs, plastic colors, the wall thickness is not uniform, tires, belts and other rubber between triangular No deformation aging, there are no leaks, oil spills place. Should be fixed on the equipment nameplate, see the nameplate equipment model is not, and they need the same. Some evidently almost from the appearance, the name is very similar, but can not be used to buy back a little attention. No nameplate, site, basically not a regular production of the company's products, quality is difficult to guarantee.

Security check: national mandatory standards, safety of agricultural products must pass a safety protection device. Like the initiation claws, fan, pulleys, PTO shaft, exhaust pipe, chain drive and the knife shaft assembly parts and so have shields. Pedals should be skid plates, easily hurt in the place you want to paste the yellow or red warning signs. Throttle, Dangba other places, have a significant operation symbols.

To check the quality of assembly: Check the farm throughout parts and components is not complete and not damaged; portable power sprayer installation is not very good. Duly qualified product assembly marks are very clear, obvious, such as the gear assembly marks, piston crown markings should be clear and in good condition. Check all screws, nuts are not all on tight, never use wire or nails instead of cotter pin. All rotating, rotating flexible drive and operating system, without sticking, loosening. If the optional rotary tiller, to see the knife shaft is not rotating flexible, without significant axial movement, catching and abnormal sound, hanging files handy, no missing parts, no leakage. Rotary Blade specifications, models are not unanimous.

Good test machine check: buy tractors, farm vehicles, etc. must be commissioning. Look after starting the engine shake do not shake, the sound is not normal, is it easy to turn off, take no black smoke, Guadang, direction, brake, throttle is not so that; choose manual sprayer (control) is best for simple spray test a trial, such as the water added to the bottle plastic sprayer kits, see the spray mist nozzle spray droplet is small, uniform, does not drip, valves and joints can not "run, run, drip, leak," and so on.

The use of pesticides should be noted that the hot season poisoning

The majority of pesticide toxic substances, such as improper use or operation are easy to cause human, animal poisoning or produce injury. Hot season, in pesticide use and application process should pay attention to the following questions:

1. Dispensing, dispensing personnel should wear rubber gloves, in accordance with the prescribed measuring liquid or powder dosage said dispensary shall be arbitrarily increased usage. Prohibited by hand to mix drugs.

2. Mixed drug use tools stirring, how much, how much mix, mix over the drug should be used seed sowing machines. Such as hand or point spread species, you must wear gloves. The remaining virus seed shall be destroyed, can not be used as food or feed.

3. Where the infirm, suffering from skin diseases and pesticide poisoning and other diseases has not been restored healthy, lactating, pregnant, menstruating women, skin lesions healed, shall not be suspended agricultural sprayers spraying or spraying.

4. Use interlaced spray liquid sprayer spraying should not be sprayed on both sides at the same time, we should downwind spray. Winds and midday heat should stop spraying. Medicine liquid can not be overfilled bins, so shake out barrels, the pollution application personnel body.

5. Equipments should be carefully checked before spraying switches, connectors, etc. screws are tightened to prevent leakage drug contamination. Clogging the spray process, application of water to rinse after troubleshooting. Absolute prohibition of mouth pipetting nozzle or strainer.

2013年8月14日星期三

Scientific use of pesticides on tobacco technology

Select the recommended types of pesticides used

In determining the control object, based on the appropriate pesticides should be used. Different varieties and types of pesticides, their mode of action, mechanisms of toxicity, control object and scope is different, and some can be rid of a variety of diseases or pests, and some can only control a certain kind. When using a pesticide, you must first understand the properties of the pesticide and control object, and then prescribe the right medicine, in order to achieve good control effect. For example, the absorption of pesticides ("aldicarb") through absorption of tobacco plants can play insecticidal effect on sucking pests (aphids) effective natural enemies safe, when used according to the uptake of Pharmacy characteristics determine the appropriate use of methods, commonly used fertilizing. Chinese companies buying and selling of tobacco production since 1999 to regulate the tobacco pesticide use, recommended the use of pesticides on tobacco varieties and the use of methods, and the prohibition against the use of pesticides on tobacco varieties. October 15, 2003 has announced the 2004 tobacco pesticide use recommendations.

To understand the biological characteristics and control object damage rules

Comprehensive grasp of the biological characteristics and control object damage rules for selecting the appropriate pesticide formulations morphology, pesticide use and the best time to provide a scientific basis. Smoke tobacco budworm generations lay eggs in the distribution are very different, in the Huang-Huai tobacco area, the second generation of smoke Green eggs distributed more concentrated, mainly in the front leaves, leaf and stems, while in leaves mostly positive, the eggs for 70% of the total amount of eggs, then use pyrethroids 1500 times or "Souls" 4000 times on the leaves and leaf spray, to receive a good control effect. The third-generation tobacco budworm eggs scattered distribution, and insects of irregular, then spraying should be comprehensive and thoughtful. Daily activity of newly hatched larvae, feeding leaves, 2nd instar larvae before very sensitive to insecticides, it is a good time to prevention. 3 years old, the tobacco budworm lurking in the leaves during the day, the night and early morning feeding on leaves, buds and tender stems, spraying and spraying needs to evening to a corresponding increase in volume in order to achieve better results. From the tobacco budworm infestation biological characteristics and laws of perspective, for the effective control of tobacco budworm infestation, you must focus on prevention and treatment of the second generation, its eradication in the two age ago, economical, and effective. Another example, the tobacco black shank disease is soil-borne diseases, the growing season rainfall or watering raindrops splashing through the water spread germs infect roots and lower portions of the first leaves, liquid sprayer spraying should be used in the lower leaves IRRIGATING or spray. However, the production of tobacco growers often concentrated on the upper leaf spraying, a waste of human and material resources, the control effect is not ideal.

Make full use of control thresholds choose the right timing control

Pest control threshold is to achieve the required degree of chemical control. See Kamada little pest damage on the adoption of chemical control or the tobacco plant pests and diseases more serious degree when water power sprayer spraying practices are undesirable. Generally, aphids indicators for each one hundred aphids reached 500, the tobacco budworm larvae control index number for each one hundred more than 10. For most leaf spot damage, the incidence rate of 5%, you need to chemical control; farming according to virus before transplanting, the rosette stage and the flourishing pre-spraying, can be achieved effectively prevented. From an economic perspective, the individual tobacco plant pests and diseases is a normal phenomenon, as long as the economic threshold is not reached, promoting the use of agricultural practices such as timely removal of individual diseases or artificial tobacco plants catch insects to control pests and diseases. Chemical control aim is both to maximize pest control, but also ensures that control costs at the lowest level, so that the two should be fully coordinated, approach or reach the cost of inputs and benefits of the "golden combination of points."

Emergence herbicide injury countermeasure

Chemical weeding efficient, thorough, labor, time, help large scale mechanized operations, efficient agriculture has become an indispensable important measures. However, due to the improper selection or spraying herbicides wrong way, the season or after the crop to cause serious injury to occur. Once phytotoxicity science should take timely countermeasures.
First, rule out the use of herbicides drug excessive drug toxicity, injury has occurred or will occur, to take early measures to detox. Immediately drain the water contained in the field of irrigation, back pack sprayer several consecutive flush with the new irrigation, drainage facilities into lime or a combination of other methods, and in the fields of acidic herbicides, reducing the content of herbicides in soil; medicine for plants harm, the available water irrigation machinery residue leaching of toxic plants, reducing the poison stick on the leaf. Severe poisoning plots should be rinsed after exposure to deep plowing, and then try to grow a small amount of sensitive crops can observe two weeks to prove that no injury again when other crops.
Second, to strengthen field management of crops on plots by the injury, to strengthen field management, the use of fast-acting fertilizer by Shi, scientific management, to reduce the impact of herbicides on crops, to reduce the losses down.
Third, the application of plant growth regulators to promote crop growth plant growth regulator is to promote crop growth agents, it has a good crop growth stimulation, but also help reduce injury.
Fourth, the use of chemical antidotes dressing with activated carbon can reduce or prevent four alachlor, linuron ,weed sprayer 24-D herbicide phytotoxicity to corn, but also in plants before planting their roots or stems dipped in powdered activated carbon, can prevent injury. Planting the crop every 15 mu 10-40 kg evenly spread on the soil surface, can also be sprinkled on the soil surface to prevent local or ribbon simazine on soybean, cucumber, wheat injury. Naphthalene dicarboxylic anhydride is used to prevent EPTC injury to corn, the usual dose is 0.15% of the seed weight, the effect is better. CGA-43089 for sorghum seed dressing to prevent isopropyl amine, acetochlor on sorghum injury. General sorghum seeds per 1 kg 1.25-1.5 g up control effect.

2013年8月13日星期二

Plant protection machinery is key to the development of sustainable agriculture is one technical equipment

Crop pests in biological disasters and hazards are restricting agricultural high quality, efficient and sustainable development of agriculture is a major obstacle. Our perennial grass pest rat, harm occurred in an area 233 million hm2 ~ 2? 67 亿 hm2. China's annual application of a variety of chemical pesticides more than 70 million tons. One hand to play an important role in protecting agricultural production, the other on the environment and ecosystems negative negative effects. Thus, according to local conditions, rational use of chemical control, biological control, physical control and other measures to achieve economic, safe and effective pest control purposes hazards grass rat is particularly important. However, China's crop protection machinery products technical level, the majority of manufacturing quality of similar products equivalent to only 60 years to 70 years level. At present, China good quality motorized hand sprayer and plant protection machinery service life of similar foreign products is only 1/2. Mobile plant protection equipment nozzle drip severe degree of atomization not up to standard requirements. Large plant protection machinery advanced technology, such as aircraft and medium-sized agricultural tractor or towed hanging low volume boom tree sprayer, etc., the market demand urgent.
Agricultural and agronomic combination is not close.

Mechanical transplanting agronomy, requires efficient and reliable equipment and planting seedlings and transplanting its supporting farming equipment. Precision Drill now and transplanting seedlings disc machines are not mature enough to reach agronomic performance requirements. Two facilities for agricultural equipment products in variety and quantity do not meet their development. A large number of needs such as greenhouse film roll motor and sunroof open and close, shade nets Curtain motor, there is no domestic stereotypes specific products. Again, fewer varieties of greenhouse special heating equipment, incomplete specifications, dehumidification and fill light device is basically empty. Seedling tray planter with a small prototype, is not mature enough. Commonly used greenhouse soil moisture and carbon dioxide concentration sensor is not reliable, economical and practical products. Fog machine is not yet developed and so on. 3 Some of the facilities of agricultural equipment technical performance and quality issues seriously. Such as water-saving irrigation, irrigation, and the performance and reliability of the transition with similar foreign advanced products have a big gap, adjustable proportion of fertilizer pump does not pass. Domestic wet curtain are paper-core, long time easy to use moss, dirt contamination, affecting over air flow and cooling effect. Galvanized steel frames are used, corrosion resistance is not strong.

Spraying pesticides remedies

Generally, the corn itself is strong resistance, nicosulfuron a slight phytotoxicity, without treatment, only temporarily inhibited growth of corn, can be restored after a period of time, does not affect the production. If severe injury, need to be addressed, we can use the following measures:

A Timely detoxification in tobacco ethyl phytotoxicity has occurred or is about to occur, to take early measures to detox. On the initial injury on corn plants, watering can manual sprayer spray equipment wash 3-5 times the pesticide residues on plants.

(2) to strengthen field management (1) pouring enough water, prompting a lot of corn roots absorb water to reduce the concentration of the herbicide plant body, relieve injury. (2) appropriate to increase the depth and frequency of hoeing, enhance soil aeration, and promote beneficial soil microbial activity, accelerate the decomposition of soil nutrients, enhance maize root under water and nutrient absorption capacity, so as soon as possible to restore normal maize plants growth and development. (3) spraying large cloud -120 (natural brassinolide) diluted 1500-fold or GA plus 1% urea aqueous solution or spiritual harm, leaf treasure diluted 500 times in the morning or evening dew dry with sprayer to spray both sides of the blade, and promote normal growth of plants, in order to effectively reduce injury. (4) Field corn injury occurs should be combined with water, increasing livestock manure composting facilities, ammonium bicarbonate, ammonium nitrate, urea and other fast-acting fertilizer to promote root development and regeneration, restoring victims corn physiology to reduce tobacco ethyl phytotoxicity to corn damage. But also foliar water sprayer  spray of 1% to 2% urea or 0.2% to 0.3% potassium dihydrogen phosphate solution or Huimanfeng 600 ~ 800 times, resume normal growth favorable for corn. Should also actively controlling other corn pests, in order to improve the ability of maize to resist injury.

If the injury caused by the cornfields too heavy, these measures can not relieve victims extent, you can only take one or switching to other crops destroyed to avoid greater losses.

2013年8月8日星期四

Pesticide spraying techniques

Spraying pesticides to control pests in many ways, can generally be sprayed and how much (ie, the level of capacity), pesticide formulation types (liquid, powder, etc.), as well as spray atomization principle applied to cloth method for classification. Pesticide Science, technology used essence, is to improve the pesticide on the target (i.e. target) on the deposition rate, lower or regions in the non-target deposition, adopt the advanced application techniques to reduce the amount of pesticide applied to the minimum effective dose, maximize the effective utilization of pesticides, while minimizing pesticide application personnel and the environment against pollution.

Modern technology development direction pesticide use mainly traditional high-volume low-concentration spray high concentration to low volume spray method development; big droplet spray fine mist spray to develop. Droplet distribution density is related to the effect of an important factor in prevention, per square centimeter droplet on the surface 20 can achieve the desired control effect. The same amount of liquid, if the droplet size by half, and the resulting 8-fold increase the number of droplets. High concentrations of low-volume spray of fine droplets in a significant increase effective utilization of pesticides, while also improving efficiency, reduce labor intensity, saving water resources. And China is currently the most widely used high-capacity spray or spray method, tend to wet the crop to a "drip drop drug" phenomenon is not only wasteful, but can not reach a better control effect.
One, knapsack sprayer application techniques. garden sprayers our current annual production capacity of 800 million units, brand, style a lot, but are of the same type, in particular, is just a tangential nozzle centrifugal kind of completely different different crops suited to control pests needs. With the domestic market development sprayer, high-grade, effort, medicine section of the new sprayer has emerged as a variety of spray guard card, configure all good atomization effect, is an ideal plant protection machinery products. Using manual sprayer spraying should pay attention to the following questions:
1, select non-drip phenomenon, good spray atomization, droplet density in guarantee case, to minimize the amount of spray. Prohibited the nozzle removed, and take rain France spraying.
2, to strengthen the pesticide on crops wet adhesion, can add a small amount of liquid detergent and other types of wetlands development agent.
3, for different crops in different pests, use of different spraying parts. Currently widely used in tangential centrifugal nozzle, spray because of its large amount of structural relationships, the error is also large, uneven distribution, can only extensive pesticide trigger sprayer spraying, no longer meet the technical requirements of the scientific use of pesticides, to gradually promote the use of vortex core or vortex-piece nozzle. Fan nozzle fog droplet distribution, spray can avoid re-spray leak phenomenon, spraying herbicides should vigorously promote the use of fan fog nozzle.
4, to change the current direction of travel along the right and left common bilateral "Z" shaped cross spray habits, promote downwind side "Z" shaped spray application personnel to ensure that the area where no drugs area. Fog nozzle with a fan, you should take unilateral parallel advance of France spray nozzle swings should be avoided.

Pesticide use technology to improve

Increased use of technology, performance play herbicide weed herbicide has its own characteristics, we must increase the use of technology to maximize the effectiveness of the herbicide weeding, weeding in order to achieve good results, and to reduce or avoid injury from occurring. To correctly handle the following relationships.

1, application and climate relationships. When the weather is dry or when the wind is spraying, will increase the amount of liquid evaporation and drift, weeds, leaves, soil surface adhesion of the liquid is reduced, resulting in decreased herbicidal effects should be avoided in the dry and windy weather conditions The following spraying.

2, application and temperature. Many herbicides increased activity in high temperature conditions, at low temperatures decreased activity, slow down dead grass, generally greater than the daily average temperature 8-10 ℃ degrees conducive efficacy of play. However, some herbicides in the day when the average temperature is about 5 ℃ spraying, you can still get a good herbicidal effect.

Such as fenoxaprop, alkynyl oxalic acid, tribenuron, azole grass ketone. In the days before winter the average temperature is about 5 ℃ (no freezing at night as well) to use, even after the winter to get a good herbicidal effect.

It should be noted with isoproturon head warm in cold tail spraying, cold spraying should be stopped 2-3 days before, or can produce cold injury.

3, the relationship between pesticide and humidity. Whether soil or foliar treatment enclosed needs to have suitable soil moisture, drought conditions are not conducive to the efficacy of the play, you should avoid spraying too dry conditions.

4, pesticide and water relations. How much water when spraying is related to the amount of liquid adhesion and uniformity of spraying, thus affecting the herbicidal effect. Asked not to re-spray herbicide, does not leak spray, repeat some easy to produce injury, where leakage garden hand sprayers weeds die. According to practical experience, as a soil closed when weeding, mu liquid volume of 45-60 kg as well (hand portable sprayers 3-4 buckets of water), foliar treatment agent to 30-45 kg (2-3 buckets of water) as well .

5, application and preparation Quality. Crushing smooth soil surface is conducive to the formation of liquid membrane closure, weeding effect. Uneven soil surface, and large clods of soil surface is not conducive to closed, and because of freezing and thawing in winter, a large clods broken, resulting in increased spring the grass, reducing the herbicidal effect.

2013年8月7日星期三

Spring weed controlling techniques and precautions

According to Weed, for different stubble, grass love grass phase, selecting the right agent, a comprehensive medication. Controlling suitable period to seize the cold tail head warm, the temperature stabilized at about 10 ℃ timely medication.

First, the control methods

Controlling weeds in wheat Tiandan cotyledons, 15% of wheat per acre with pole 40 g or 6.9% Puma 80-100 ml; controlling broadleaf weeds, broad acre with 20% wins 20-30 ml +10% wheat sword 15-20 g; Mixed plots per acre with 15% wheat pole 40 grams (or 6.9% Puma 80-100 ml) Width wins 20-30 ml +20% +10% wheat sword 15-20 grams.

Rapeseed controlling monocotyledonous weeds per acre with 10.8% high cover 40 ml; controlling broadleaf weeds per acre with 30% Benazolin 50-60 ml; Mixed plots per acre with 10.8% high cover 40 ml +30 % Benazolin 50-60 ml.

Second, note

With prospective dose, with enough water, water power sprayer 60-70kg / acre, Mist Sprayer 20-30kg / acre, uniform fine agricultural sprayers spray to ensure the control effect; barley banned Puma, rape fields disable Ethametsulfuron, cabbage type Brassica juncea disabled Benazolin, Catcher completely banned green, A Huang Long as their mixtures, to ensure safety after the crop; application equipment should be cleaned after use.

Agricultural transformation must rely on equipment modernization

At this stage, our focus on the development of sustainable agriculture intensive agricultural products into the following categories:

1 adapt to the development of sustainable agriculture technology development farming machinery products to meet environmental protection, soil fertility, to achieve high-yield agricultural production, efficient (a) mechanical tillage to new products: a joint operation subsoiling machine; 2 high clearance suspension plow ; 3 paddy land preparation, ground joint working machine; 4 farmland clear membrane that joint working machine; 5 straw chopper drive. (2) Drill new products: a joint operation tillage planting machine; 2 deep fertilizing sperm small amount of wheat planter series; 3 wheat mulch cover furrow planter; 4 conservation tillage sowing fertilization Pneumatic Precision joint operating machine; 5 Universal mulching planter. (3) rice cultivation equipment new product: a raising rice seedlings equipment; 2 high-speed rice transplanter; 3 double rice transplanter; 4 Rice live machine; 5 upland transplanting machine.

(2) development of sustainable agriculture to adapt to the development of intensive plant protection machinery new products to meet reduce pesticide use, reduce pollution and land for agricultural products (1) low-volume spraying machinery new product: a low volume knapsack sprayer series products, the key technology is a new manual pump, fully sealed press pressure switch, low volume sprinklers; 2 hanging low volume boom back pack sprayers, the key technology is the low-pressure piston diaphragm pump series modular dispensing valve, automatic control and display recording devices; 3 low traction volume boom sprayer, the key technology is the same hanging low volume boom sprayer. (2) a new series of plant protection products: a knapsack hydraulic atomization - air transport sprayer series products, the key technology is a small pump, axial fans, etc.; 2 mobile paddy wide sprayer series, the key technology is the ceramic piston, wide long-range guns, automatic systems for drug development; 3 mini tractor orchard liquid sprayer breeze series, the key technology is the axial fan, nozzle structure development; 4 normal smoke machine, the key technology is a new Pneumatic atomizing nozzle parameters, automatic air spray automatic timing and delay the development of control systems.

3 intensive sustainable agriculture research and technological development intercropping machinery products (1) high clearance tractor series: According to wheat, cotton, ground clearance height to determine tractors, power 36.8kW ~ 88.2kW wheeled tractor. (2) intercropping tools: with the tractor, seeder requested suspension, spacing adjustable, semi-precision. (3) New Combine Harvester: Adaptation of rice, wheat, corn and soybean yield harvest (such as rice yield 750kg ~ 900kg).

2013年8月6日星期二

Note the use of pesticides hot season

Most pesticides and toxic substances for the chemical substances in the control crop pests plays a pivotal role. However, if the use or improper operation can easily cause human, animal or crop phytotoxicity poisoning. Summer hot season, at the peak of a variety of pests and mixed hair, prevention of drug use is more frequent in pesticide use should pay attention to the following points:

1, the preparation of liquid when dispensing personnel should wear rubber gloves, in accordance with a prescribed dose of medicine, said measuring liquid or powder, are not free to increase or decrease the dosage. Preparation of liquid mixing prohibited by hand directly.

2, mixed drug use tool to stir, how much, how much mix, as used with the configuration of the liquid; mix over the drug should be used seed sowing machines. As with the artificial hand or point spread species, should wear rubber gloves. Right mix of seeds over the remaining drug should be destroyed, not as food or feed use.

3, where the sickly, suffering from skin diseases and pesticide poisoning and other diseases has not been restored healthy, lactating, pregnant, menstruating women, skin lesions healed, shall not be suspended spraying or spraying operations.

4, the use of pesticides should be interlaced sprayer spraying spray can spray while swinging left and right sides, to downwind spray. Try to avoid the midday heat period winds and spray. And note that the liquid medicine is not overfilled bins to avoid spray liquid shake out operations outside the barrel, pollution caused by pesticide poisoning symptoms of their bodies.

5, should be carefully examined before spraying Medical Device switches, connectors, etc. screws are tightened to avoid "drip, run, run, drain" caused by pesticide pollution. Clogging the garden hand sprayers process, the application of water rinse after troubleshooting. Absolute prohibition of mouth pipetting nozzle or strainer.

6, in the spraying period of not drinking, smoking, drinking, eating, etc., can not be directly Cazui hands, face, eyes, absolutely not allowed to spray each other frolic. Wash thoroughly with soap after spraying hands, face and mouth, pesticide-contaminated work clothes to be washed and replacement bulbs. Pesticide spraying operations staff time per day is generally not more than six hours.

7, the application of high toxic pesticide poisoning obvious place to erect signs within a certain time (harvest interval) prohibit grazing, harvesting, to prevent livestock poisoning. And pay attention to compliance with the relevant provisions of the safe use of pesticides is prohibited highly toxic pesticides in vegetables, fruit, tea and other use.

8, should be promptly cleaned after spraying water power sprayer and keep it clean safekeeping; Guo Cheng Zhongsheng preparation and handling of pesticides packaging materials, centralized processing, nor for holding grain, oil, wine, water and other food and feed.

9, after spraying fruit and other vegetable crops, must be in a safe interval after harvesting and consumption. To soak and rinse before eating to eliminate pesticide residues in vegetables.

10, with a special chemical properties and performance of pesticides, must be read carefully prior pesticide label on the package, in accordance with label precautions for personal protection and operation.

Sprayers usually Troubleshooting

1, the switch leakage. Switch asbestos gasket wear or abrasion may cause the switch switch leakage, should be replaced with new washers or asbestos.

2, the switch is not flexible. bottle sprayer long home unused, switches and embroidered turbid due to the liquid, remove the switch into the kerosene cleaning, erasing rust, coated with suitable lubricant installed, tighten the switch cap can be.

3, do not play into the gas chamber, under the pressure does not focus on the joystick. May be due to hardening shrinkage or cracking or the cup bottom of the cup nut loosening caused. Cup should be little pressure to open or replace it with new cups, animal oil immersed lubrication after expansion installed, coated with a little oil, and tighten the bottom nut.

4, atomization quality poor. There may home garden sprayer nozzle clogging, the filter casing valve is blocked or out of the water and other contaminants stay put. Should clear the nozzle to remove debris; open the casing if the casing should be cleaned clogged strainer, check valve, remove dirt.

5, automatic air chamber piston rod rose, capping the top to take in water. Or more due to the gas chamber bottom wall cracks sealing off or valve housing glass ball was clogged, not months or cup seal valve damage caused. Application tin welding repair cracks, remove body debris, replace cup.

6, the gas chamber lid gland leakage or water leaks. The reason is skin damage or flange gasket and sealing off the gas chamber, replace the washers or soldering desoldering place.

2013年8月5日星期一

Knapsack sprayer use

1 To properly install the knapsack sprayer components. Check all connections for leaks, use, install water spray test, then loaded agents.

2 official use, the first Canadian Pharmacy, add water, the liquid's surface can not exceed the safe water line. Spraying before pulling the joystick more than 10 times, so that the barrel pressure up to operating pressure. Not use excessive force when pulling the joystick to avoid the gas chamber explosion.

3. The initial loading of liquid, because the gas chamber and spray bar contains water, the spray initial 2 to 3 minutes, the injected liquid concentration is low, it should pay attention to fill bottle sprayer to avoid affecting the pest control effect.

4 After work, should be poured barrel residual liquid, washed with water and pour dry, while checking the gas chamber without water, if water, to remove the water connector release water.

5 If you do not use the spray near term, the main components should be clean, dry bottles in a cool dry place. If the long-term need, all metal parts have to be buttered, to prevent rust.

How to use spray

As agricultural sprayer production and agricultural machinery fortune good helper, not only will buy, good maintenance and proper operation, maintenance, maintenance of machinery is also very important.

Accordance with the "agricultural machinery repair, replacement, return liability" Article 23 stipulates that any person caused by a mechanical failure, not to implement three. To this end, the majority of machine hand note the following four points:

First, carefully read the instruction manual machinery, master structure and properties, avoid gulping, opinionated and can not act as a "knowledgeable."

Second, farm sprayer operating machinery should follow the rules, pay attention to methods of maintenance and avoid so-so, not fooling.

Third, there is limited functionality agricultural machinery, truck speed limit regulations, avoid "small horse cart", Tanxiaoshida.

Fourth, the firm can not operate sick machinery, if it is found defective machinery, to immediately stop the operation, maintenance and repair promptly.

2013年8月4日星期日

Cyclone

Cyclone is a rotational movement using fluid pressure generating means. When the slurry to a certain speed into cyclone, cyclone encounters the wall after being forced for rotary motion. Since the centrifugal force suffered different solids slurry of coarse particles suffered large centrifugal force, able to overcome the hydraulic resistance movement to the wall,water power sprayer  and in the joint action of its own gravity, spiral downward movement along the wall, thin and small granules and most of the water due to the centrifugal force suffered a small and less close to the wall that is to do with the slurry rotary motion. In the subsequent feeding, driven by continued downward slurry and rotary motion, then continue to the surrounding coarse particle concentration, while the small particles are stuck in the central area, particle size from the center to the wall increases, the formation of sub- layer arrangement.

As the slurry from the flow of the cylinder portion of the cyclone cone part, getting smaller and smaller flow cross-section,bottle sprayer the outer slurry contraction oppression, the inner layer contains a lot of small particles slurry had to change the table direction, turn upward movement, the formation of the inner cyclone, discharged from the overflow pipe to become overflow, while coarse particles continued to spiral downward movement along the wall, forming the outer cyclone, and ultimately by the underflow discharge port, a grit.

A Brief History of the hydrocyclone

Hydrocyclone early in the 20th century in the late 1930s in the Netherlands appears. Hydrocyclone is the use of rotary flow grading equipment, and is also used for thickening, dewatering result sorting, its structure is very simple, is dominated by a hollow l and a tapered cylinder 2 is connected from. cyclone diameter of the cylinder represents the specification. its size varies greatly from 50mm to 1000mm, typically 125-500mm. inserted in the center of the cylinder an overflow pipe 5 ,weed sprayer there is tangentially connected to the mine pipe 3, in the lower left Spigot cone 4 slurry under pressure,? along the ore fed into the cyclone tube inside, then limit the cylindrical wall perishable rotary movement of coarse particles due to inertia and centrifugal force wall was thrown and gradually downward flow discharged from the bottom of a grit. fine particle moving speed of the lower wall, is driven by the liquid flowing toward the center from the central overflow pipe outflow become overflow.
Hydrocyclone is a high efficiency rating, off the mud equipment,garden sprayer backpack due to its simple structure, easy to manufacture, processing capacity, has been widely used at home and abroad. Its main drawback is the large power consumption, and in the high-pressure feed Mine is badly worn. adopt new wear-resistant materials, such as cemented carbide, silicon carbide and other production Spigot and wear parts to the mine mouth can partially solve this problem, in addition, when used in closed-circuit grinding of grading, because of its small volume, no buffer against fluctuations in ore ability as mechanical grading machine work stable.