In order to save time and investment in spraying and fertilizing, many farmers may use foliar fertilizer and pesticide mixing. Although the method of double application of this kind of fertilizer is really troublesome, it must be cautious when applied. If it is used improperly, it is very likely that it will not be able to prevent and cure diseases and promote the growth of the tree. Instead, it will cause various phytotoxics or fertilizers in the crops, which will cause many unnecessary losses. So how do foliar fertilizers and pesticides be mixed and effective?
1. Before using the mixed solution of fertilizer, it must be tested in a small range and then applied in a wide range.
After the foliar fertilizer and the pesticide are evenly mixed, even if there is no bad change from the liquid state, it does not mean that the solution is completely safe and harmless. I hope that the farmers’ friends should not take it too lightly and take it directly. For crops, it is important to test the crops in small areas before use. After confirming the safety of the crops after use, there is no bad performance, and then spray them on a large area.
Second, the fertilizer is mixed, it is best to use it now.
Generally, certain chemical reactions will occur after mixing different drugs. Some of them have no adverse reactions when they are placed, but they will react slowly after being left for a long time. If they are left, they will lose their effect, but they will cause phytotoxicity. Even if some pesticides are more stable, they are left for a long time. It must be effective without the current use.
Third, the foliar fertilizer and pesticides are added in order
In general, the blending of foliar fertilizers and pesticides should be based on foliar fertilizers, wettable powders, and suspending agents on the premise of sufficient water (neutral water with low ion concentration such as rainwater and river water). The water agent and the cream are added one after the other. Each time a drug is added, it should be stirred and mixed to form a single-dose solution, and then the next water-soluble solution is added. It is forbidden to add and mix at the same time to avoid adverse reactions. If the solution is found to have flocculation, discoloration, turbidity, precipitation, delamination or bubble formation or other physical reaction or chemical reaction, the mixing should be stopped immediately, and the prepared solution should be disposed of and should not be reused.
Fourth, observe the state of the solution after the uniform mixing of the fertilizer
Because the ingredients of foliar fertilizer are mostly a mixture of large, medium and trace elements, some also contain a certain amount of hormones and growth regulators. If incompatible fertilizers are used, the flocculation, discoloration and turbidity are prone to occur. , precipitation, stratification or the production of bubbles and other reaction performance, this Chinese medicine fertilizer mixed solution sprayed on the crop, the light agent failure has no effect, in severe cases, fruit vegetables have poisoning or fertilizer damage, phytotoxicity and other issues. If a foliar fertilizer containing acidic acid such as boric acid or ferrous sulfate is mixed with copper such as weakly alkaline copper hydroxide, acid-base fusion is likely to occur and the effect of use is affected.
In addition, when the foliar fertilizer and pesticide are mixed, pay attention to the configured concentration and the correct application time.
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