Whether foliar fertilizer and pesticide can be mixed, according to the specific introduction of the drug, carefully read the instructions before mixing the chemicals. Because of the different nature of various fertilizers and pesticides, if the mixed use is unreasonable, it will affect the effect of using the fertilizer or even produce the harmful drugs. harm.
First, make sure that the foliar fertilizer does not chemically react with the pesticide after mixing. After mixing, if the physical properties of the liquid are good, it is necessary to carry out a small-area test first to ensure that the fertilizer is not damaged and then used in a large area.
Second, the order of mixing foliar fertilizers and pesticides should be noted. Generally, a sufficient amount of water is first mixed with a single dose of the drug solution, and then mixed together, and the two agents cannot be mixed first, and then diluted with water to avoid adverse reactions, resulting in destruction of the active ingredients.
When the foliar fertilizer is mixed, the order of foliar fertilizer and pesticide mixing is usually: foliar fertilizer, wettable powder, suspending agent, water agent, and emulsifiable oil are added in sequence, and each time one is added, the mixture is thoroughly stirred and mixed, and then the next one is added. .
Third, pay attention to the use of water when mixing. Water has a great influence on the agent, and the pH and ion concentration of the water will affect the effect. Apply clean water, rainwater, river water, etc. to the water.
Fourth, the liquid should be ready for use. The liquid should be used now, because some liquids have no adverse reactions when they are just mixed, but they will react slowly for a long time, causing loss of efficacy or phytotoxicity.
Fifth, the use of foliar fertilizer and pesticides is contraindicated. (1) Alkaline pesticides cannot be mixed with ammonium fertilizers such as ammonium nitrogen fertilizer and superphosphate, otherwise the ammonia will be lost and the fertilizer efficiency will be reduced. (2) Pesticides containing arsenic cannot be mixed with potassium salts or sodium salt fertilizers, otherwise soluble arsenic will be produced and phytotoxicity will occur. (3) Alkaline fertilizers such as ammonia, lime, grass ash, etc. cannot be mixed with pesticides , otherwise the efficacy will be reduced. â‘· chemical fertilizers can not be mixed with the microbial pesticide, due volatile and corrosive chemical fertilizers, pesticides and microbial mix, will kill microorganisms and reduce the control effect.
The above are some precautions for the mixing of foliar fertilizer and pesticides. When mixing, you can refer to the above methods for reasonable treatment.
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