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Foliar fertilizer applied to crops can effectively improve fertilizer efficiency and reduce total fertilizer consumption. In order to save time and labor in crop cultivation and management, foliar fertilizers are often mixed with pesticides. For example, for wheat, many growers will carry out the “one spray and three prevention” work for wheat after the year. In this process, pesticides, fungicides, foliar fertilizer or some regulators will be used together.

It is a good interpretation of what is meant by "many, powerful," and "strong union", but foliar fertilizer also has its own "temper", which cannot be mixed casually, and the wrong way will be counterproductive.

Because the properties of different fertilizers and pesticides are different, unreasonable mixing and matching will affect the effects of fertilizers and pesticides, and even produce fertilizer and pesticide damage. So keep in mind the mixing taboos.

Precautions for mixing foliar fertilizer and pesticides:

One: Pay attention to acid and alkali.

This is the first point of mixing foliar fertilizers and pesticides, because the foliar fertilizers and pesticides must be used in a stable shape after mixing, and see if there are reactions such as precipitation and bubbles after mixing. Most foliar fertilizers containing boric acid and ferrous sulfate are acidic, while copper preparations such as copper hydroxide are alkaline. If it is mixed, it is easy to react and affect each other's use effect.

Fertilizers are also alkaline, such as ammonia, lime, plant ash, etc. They cannot be mixed with acidic pesticides, especially pesticides, which are mostly acidic! Mixed use will affect the insecticidal effect!

Two: Pesticides containing arsenic cannot be mixed with potassium salt and sodium salt fertilizers, otherwise it will produce soluble arsenic and cause phytotoxicity.

Three: Chemical fertilizers cannot be mixed with microbial pesticides.

Because chemical fertilizers are volatile and corrosive, it is easy to kill when mixed with microbial pesticides such as Pyricularia and Penicillium.

 Dead microorganisms reduce the control effect.

4: Pay attention to the mixing sequence of foliar fertilizer and pesticide.

The mixing sequence of foliar fertilizer and pesticides is usually: foliar fertilizer, wettable powder, suspending agent, water agent, emulsifiable concentrate are added in sequence, and after each one is added, stir and mix thoroughly, and then add the next one.

Five: Secondary dilution is very important.

It is recommended to use the secondary dilution method for mixing, dissolve it in a small container first, and then add it to the sprayer, and dilute it in sequence, so that the dosage standard can be guaranteed and there will be no harm!

When adding foliar fertilizers and pesticides, it is recommended to dilute them in sequence and then pour them into a vat. For example, after foliar fertilizers are diluted, pour them into a vat, and then add wettable powder, which is also diluted first, and then added to the vat. In the same way, in this case, the liquid medicine will be more evenly mixed, which is conducive to the effect of the medicine.

 Six: Be careful with water when mixing.

Hard water cannot be used to dilute pesticides, because the calcium, magnesium and other substances contained in hard water can reduce the suspension rate of wettable agents or synthesize calcium and magnesium precipitates with emulsifiers in emulsifiable concentrates, destroying the emulsifying properties of emulsifiable concentrates, which will not only reduce pesticides The prevention and treatment effect, but also produce phytotoxicity. The soft water contains less calcium and magnesium and other substances, which will not damage the performance of the medicament and reduce the control effect.

Common hard water is well water, salt water, sea water and other water containing more calcium, magnesium and other substances, and soft water is river water, lake water and other fresh water.