First, to ensure the shape of the foliar fertilizer and pesticides after mixing is stable because foliar fertilizer may chemically or physically react with pesticides, affecting the effectiveness of pesticides or causing phytotoxicity. If the liquid has poor performance, it is not suitable for mixed use. Even if the physical properties of the drug solution are good after mixing, it is necessary to carry out a small-scale test first to see if it is prone to damage and phytotoxicity, and then use it in a large area. For example, foliar fertilizers containing boric acid, ferrous sulfate and the like are mostly acidic, while copper preparations such as copper hydroxide are alkaline. If it is easy to react after mixing, it will affect the use effect. 2. The order of mixing foliar fertilizer and pesticide should pay attention to the fact that a sufficient amount of water is first used to prepare a single dose of liquid, and then another solution is diluted with this liquid. Single agent; can not mix two single agents first, and then diluted with water to avoid adverse reactions, resulting in the destruction of active ingredients and deterioration of physical properties.
When foliar fertilizer is mixed, the order of foliar fertilizer and pesticide is usually: foliar fertilizer, wettable powder, suspending agent, water agent, and emulsifiable oil are added in sequence, and each one is added, then fully stirred and mixed, and then the next one is added. .
Third, pay attention to the amount of water used in the mixing of water has a great impact on the liquid, the pH of the water, the ion concentration, etc., will affect the effect. It is better to use medicinal water with neutral water with low ion concentration, such as clean rain water, river water, etc. 4. Pay attention to the current use of the liquid medicine. Although there is no adverse reaction when it is just matched, it is easy to produce a slow reaction for a long time. Loss of efficacy or susceptibility to phytotoxicity. If some pesticides are stable under weak alkaline conditions, they should also be used immediately. If they are placed for a long time, they will be ineffective.
Fifth, pay attention to acidity and alkalinity.
It is also necessary to test whether flocculation, precipitation or discoloration occurs, and bubbles are generated after mixing. If the liquid has poor performance, it is not suitable for mixed use. Even if the physical properties of the drug solution are good after mixing, it is necessary to carry out a small-scale test first to see if it is prone to damage and phytotoxicity, and then use it in a large area.
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