FOSHAN GAOMING JIALESHI DECORATIVE MATERIAL CO.,LTD , http://www.jlsbuildingmaterial.com
1. Herbicide dosage forms: There are many types of herbicides, and different dosage forms are formulated differently. For example, emulsions, liquids and suspensions will dissolve and diffuse quickly after seeing water. The herbicides of these dosage forms can be prepared by one-step dilution method, that is, a certain amount of herbicide is directly added to the sprayer for dilution, and after dilution, it can be sprayed. Shi. This method can be used for 72% dur emulsion and 90% Wones emulsifiable concentrate. The wettable powder, dry suspoemulsion and other dosage forms cannot be diluted by one-step method, but must be prepared by two-step dilution method: the first step is to accurately weigh the herbicide according to the requirements, and stir it with a small amount of water to make it fully dissolved. The second step is to add a certain amount of mother liquor to a certain amount of water, and then spray it evenly after dilution. 75% superstar dry suspoemulsion, 25% herbicide ether wettable powder, etc. must be diluted by this method, and must not be diluted by one-step dilution method.
2. Prepare the diluent: Prepare the diluent in the sprayer kit. You must add about 10 cm of water to the kit before adding the potion or mother liquor slowly to the kit, then add water to the water line to spray. Never pour the drug or mother liquor before the water tank is filled with water or fill the water tank with water, because it is difficult to prepare a uniform dilution solution, which will seriously affect the control effect.
3. The drug solution in the medicine box should be sprayed immediately after it is dispensed, because the specific gravity of the various herbicides is not exactly the same as the specific gravity of the water. For example, the specific gravity of the herbicide is larger than that of water, and the herbicide will sink after storage for a period of time, resulting in the lower medicine. The concentration of the liquid is large, and the concentration of the upper liquid solution is small, which seriously affects the herbicidal effect.
4. The dilution in the sprayer is preferably added to the water level of the sprayer and must never be filled at once. If the sprayer medicine box is filled, the liquid medicine in the medicine box is difficult to shake when the application personnel walks, and the medicine is liable to sink or float, which affects the uniformity of the liquid medicine, thereby affecting the herbicidal effect. In addition, when the pesticide application is applied, the liquid medicine is easily splashed from the mouth of the medicine box and hit the application personnel, so the liquid medicine in the medicine box must not be too full.
Tips for dilution of herbicides in sprayers
In order to facilitate the application of pesticides, many farmers' friends do not separately prepare the diluent when spraying the herbicide. Instead, the herbicide is directly added to the sprayer, and the diluent is prepared in the sprayer water tank, and then directly sprayed. However, due to poor mastery of the technology for formulating herbicide diluents, problems often occur during the formulation process, directly affecting the herbicidal effect. In order to improve the efficacy of herbicides, the following four issues must be noted during the dispensing process:
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