What are the problems that should be paid attention to in spray application?

When spraying pesticides, water and pesticides should be dissolved in a certain proportion, and then sprayed on the leaves of plants, when spraying pesticides, do not be in a closed place to avoid pesticide poisoning, and when spraying pesticides, we should also do a good job of protection, we must protect our own **, and then wash our hands in time after spraying pesticides.

When operating, it is necessary to avoid the wind, to determine the corresponding area, not to spray at will, to choose to use clean water for proportioning, and must be ready to use.

The problem that needs to be paid attention to is that you must pay attention to protect yourself, you must wear a mask, wear protective clothing, and then spray must be even, you must choose after 5 o'clock in the afternoon, do not work when the sun is the hottest, usually after spraying must stay away from the scene, and then be sure to clean yourself in time.

The following problems should be paid attention to when spraying fertilizers:

1.The total area of the enterprise should be added according to the specification, the walking rate should be consistent, and the fine particles of the printer nozzle should be evenly proportioned, and no re-spraying or leakage spraying. 2.

Sprayers should be used for crop fields where the canopy is accumulated, and a high-pressure or air-fed sprayer should be used to facilitate fine particles to cross the canopy. 3.Under the climate standard of high ambient temperature and high wind, it is necessary to prevent the sprayer from being too fine to prevent environmental pollution, and pay attention to sensitive crops that are planted quickly in the vicinity.

4.The use of chemical fertilizers, especially the use of highly toxic pesticides, should be clearly marked to prevent people and animals from entering the natural environment of spraying, resulting in poisoning safety accidents. 5.

Before spraying, it is necessary to spray the equipment carefully and carefully to avoid the running, rising, dripping and leakage of the medicine.

Keep an eye out for the wet spreading properties of the potions. When spraying pesticides, the adhesion of emulsifiable concentrate and degreaser on the plant body is strong, while the adhesion of liquid agent and wettable powder is weak. From the perspective of improving the medicinal power, when spraying insecticidal chemical fertilizers such as bis, dimethyltetrachloride, glyphosate, etc., a small amount of neutral chemical fertilizer soap powder can be added as a spreading agent to improve the wet working ability of the drug.

In some herbicides, adding an appropriate amount of ammonium sulfate can improve the ability to work, such as dimethyltetrachloride and ammonium sulfate, the digestion and absorption time is reduced from 24 hours to 10 minutes.

Some drugs lose their potency due to conversion to non-water-soluble or insoluble chemicals, and in some saline areas, the pH value of the water body is high, which will cause a chemical reaction rate with the drug, making the drug potent reduced or ineffective. Turbidity in water reduces the vitality of chemical fertilizers and renders accelerated passivation of herbicides such as glyphosate and paraquat ineffective. Therefore, it is advisable to choose clean water with neutral pH value for potion tap water.

Pay attention to improving the quality of the sprayer. The nebulizer law generally stipulates that the fine particulate matter of the medicine is evenly distributed, the penetration rate is high, the amount of medicine is moderate, and it is advisable to moisten the surface of the overall target without causing outflow. When preventing some pests and mites, it is necessary to carry out a sprayer with unique parts.

For example, bud insects and mites like to damage the negative side of green plant leaves, and when preventing, it is necessary to carry out a targeted sprayer on the opposite side of the leaf in order to receive satisfactory control effect.

No matter which method is used, be sure to take protective measures!

When spraying, we must pay attention to safety, do not spray on the **, at the same time, we should also wear protective clothing when spraying, we also need to prevent pesticide poisoning, we must wear a mask, and we should improve the quality of spraying, pay attention to the ratio of water and pesticides, do not spray pesticides in rainy days, and spray pesticides when it is sunny.

We must pay attention to safety, we must wear a mask to protect ourselves when spraying pesticides, in fact, we should also dilute when spraying pesticides, and we must put the nozzle a little lower when spraying pesticides, so that we can play a better role and spray more evenly.

It is necessary to do a good job of personal protection, to avoid poisoning, to pay attention to the temperature of the outside, but also to pay attention to the scope of spraying, but also to pay attention to the number of spraying.

A certain amount of pesticide and an appropriate amount of water are used to prepare the liquid medicine, and the liquid is sprayed into droplets with a spraying instrument, the smaller the droplets, the better the atomization effect and the better the spraying effect.

Pay attention to improving the wet spreading performance of the chemical solution. When spraying pesticides, the adhesion of emulsifiable concentrate and oil agent on the plant is strong, while the adhesion of water agent and wettable powder is poor.

Attention should be paid to the water quality of the diluted chemical solution. The hardness, alkalinity and turbidity of water have a great influence on the efficacy of the drug. When the water contains too much calcium salt and magnesium salt, the stability of the emulsion and suspension prepared by the ionic emulsifier can be destroyed.

Pesticide poisoning should be prevented. In the spraying process, the droplets often drift with the wind, polluting the first and respiratory tract of the pesticide applicator, therefore, the pesticide applicator should do a good job of safety protection, and the sprayer must be debugged before spraying to prevent the liquid from running, dripping and leaking in the spraying process.

Pay attention to improving the wet swelling properties of the chemical solution. When spraying pesticides, emulsions and oils have strong adhesion to plants, while water and wettable powders have poor adhesion. In order to improve the efficacy, when spraying pesticides such as insecticides, dimethyl tetrachloride, glyphosate, etc., a small amount of neutral laundry detergent can be added as a spreader to improve the wet spreading ability of the agent.

In some herbicides, the addition of an appropriate amount of ammonium sulphate can improve the spreading capacity. For example, with the addition of ammonium sulfate to dimethyl tetrachloride, the absorption time was shortened from 24 hours to 10 minutes.

In conditions of high temperatures and strong winds, spraying should be avoided to prevent contamination and attention should be paid to sensitive crops planted near the plot. Plots where pesticides are used, especially those where pesticides are too toxic, should be marked in a conspicuous position to prevent humans and animals from entering the use environment and causing poisoning accidents. Carefully check the medication device before medication to prevent the liquid medicine from running, rising, dripping and leaking.

The hardness, alkalinity, and turbidity of water have a great influence on efficacy. When there are too many calcium and magnesium salts in the water, the stability of emulsions and suspensions made of ionic emulsifiers is disrupted. Some drugs lose their efficacy due to conversion to an insoluble or insoluble substance.

In some saline-alkali areas, the pH value of water quality is high, which will produce a neutralizing reaction with the agent, reducing or invalidating the efficacy of the drug. Cloudy water not only reduces the activity of pesticides, but also accelerates the passivation failure of herbicides such as glyphosate and paraquat. Therefore, the solution water should be clean water with a neutral pH value.

During the spraying process, the droplets often drift with the wind, contaminating the pesticide user's ** and respiratory tract. Therefore, sprayers must do a good job of safety protection. Before spraying, the nozzle must be adjusted to prevent the Chinese medicine from running, dripping and leaking during the spraying process.

Highly toxic pesticides cannot be sprayed finely. Some pesticides are highly toxic, such as insecticides, insecticidal rings, and insecticides. Care should be taken to improve the quality of spraying.

The spray method usually requires uniform droplet distribution, high coverage, and an appropriate volume of liquid. When spraying certain insects and mites, special areas should be sprayed. If aphids and mites like to damage the back of the leaves of plants, they should be sprayed on the back of the leaves to achieve the desired control effect.

The first point must be careful not to spray too much, otherwise it will cause the death of the plant, the second point should pay attention to this speed when spraying, you must master the skills, the third point should pay attention to the proportion of this water must be mastered, otherwise the drug will have no effect.

Appropriately reduce the concentration of the agent, pay attention to the quality of the spray, etc. Appropriately reduce the concentration of the agent, and reasonably adjust the concentration according to the change of temperature; Pay attention to the quality of the spray, the atomization effect must be good, in order to reduce the waste of the liquid.

Wear a mask, wear long-sleeved clothes at the same time, or wear protective clothing, pay attention to the efficacy, but also pay attention to the effect of dilution, do not contact with **, and pay attention to the way of spraying.

It is necessary to pay attention to the concentration of spraying, the time of spraying, and the scope of spraying, and to take protective measures to avoid poisoning.

Spray application should pay attention to the water quality of drug dilution, the addition of adhesives, and also pay attention to improving the quality of spray, pay more attention to drug poisoning, pay attention to these can ensure the efficacy of the drug, but also to ensure the safety of the sprayer, in addition to these, the proportion of the preparation of drugs should also be noted, the concentration is too high or too low.

When spraying pesticides, we should pay attention to the water quality of the drug, because sometimes the water quality is too hard or too alkaline and its turbidity is too high will have an adverse effect on the efficacy of the drug, in addition, when the water contains calcareous magnesium salts and other chemicals, the stability of some drugs will be damaged, which will change their efficacy. Therefore, when spraying the drug, it is necessary to choose clean water with neutral water quality, and do not use turbid water with poor water quality.

When spraying pesticides, you also need to pay attention to the addition of adhesives, because some drugs are not easy to spray on the surface of plants after dilution, and they are not easy to stick to the leaves or stems of plants after dilution, and they are not easy to stick to the leaves or stems of plants, so it will affect the play of its efficacy. It will allow them to stay on the surface of the plant for a longer period of time, and will have a stronger medicinal effect.

When spraying pesticides, we should pay attention to drug poisoning, and these employees who spray drugs must do a good job of safety protection measures, because the drugs will drift with the wind during the spraying process, and at this time, they will be digested and absorbed by these spraying workers according to the respiratory system and **, which is easy to cause harm to their bodies, so they should wear masks and long-sleeved shirts to prevent drugs from invading the body during the spraying process.

Spray application is a certain need to stipulate the uniform distribution of the potion, and the penetration rate should be high, the total number of potions should be moderate, and the surface of the plant should not cause outflow after spraying. In addition, when spraying some drugs to treat some insect pests, it is also necessary to grasp its spraying method, not only to sprinkle the surface of the leaves, but also to spray the reverse side of the leaves.