Problems that should be paid attention to when using sprayers

In order to facilitate the application of pesticides, many farmers do not make diluents alone when spraying herbicides, but directly participate in the herbicide, make diluents in the sprayer water tank, and spray them directly after preparation. However, due to the poor grasp of the skills in the manufacture of herbicide diluents, problems often present in the manufacturing process, which directly affect the weeding effect. In order to improve the control effectiveness of herbicides, it is necessary to pay attention to the following four issues in the dispensing process:

1. Dosage form of herbicide

There are many dosage forms of herbicides, and the manufacturing methods of different dosage forms are different. For example, emulsion, water and suspension will be dissolved and dispersed quickly after seeing water, and the herbicide of these dosage forms can be prepared by one-step dilution method, and a certain amount of herbicide will be directly diluted in the sprayer, and it can be sprayed after dilution. 72% Doer emulsion and 90% Honais emulsifiable concentrate can be used in this method. WP, dry suspension emulsion and other dosage forms can not choose the one-step dilution method, but it is necessary to choose the two-step dilution method to manufacture: the step is to accurately weigh the herbicide as required, add a small amount of water and stir, so that it is fully dissolved as the mother liquor. The second step is to add a certain amount of mother liquor to a certain amount of water, and then spray it after diluting it evenly. It is necessary to use this method for dilution of 75% superstar boring suspension emulsion and 25% herbicide ether wettable powder, and it is absolutely not possible to use one-step dilution method.

2. Make diluents

To make diluent in the negivers' medicine box, it is necessary to first participate in about 10 cm of water in the medicine box before gradually adding the medicine or mother liquor to the medicine box, and then add water to the water level to spray. It is important not to pour in the water tank before it is filled with water or after the tank is filled with water, as it is difficult to produce a uniform diluent and will seriously affect the removal effect.

3. The medicine box should be sprayed immediately after the liquid medicine is prepared

The reason is that the specific gravity of various herbicides is not exactly the same as the specific gravity of water, if the specific gravity of herbicides is larger than that of water, the herbicides will sink after a period of storage, forming a large concentration of the lower liquid and a small concentration of the upper solution, which seriously affects the herbicide.

4. The diluent in the sprayer should be added to the water level of the sprayer

The diluent in the sprayer should be added to the water level of the sprayer and should never be filled for a while. If the sprayer medicine box is overflowing, the medicine liquid in the medicine box is difficult to shake when the pesticide applicator walks, and the medicine simply presents a sinking or floating scene, which affects the uniformity of the medicine solution, and then affects the weeding effect. In addition, when the pesticide applicator applies the medicine, the liquid medicine also simply splashes out from the upper mouth of the medicine box and flows to the pesticide applicator, so the liquid medicine in the medicine box must not be too full.