Fertilizers and pesticides are the main means of production for agricultural production and play an important role in increasing agricultural production and income. However, it must be scientifically and rationally applied to improve the work efficiency, fertilizer efficiency and efficacy, and achieve the goal of doing more with less. Blindly mixed application is unfavorable to crop growth and may even cause phytotoxicity. Therefore, when mixing fertilizers and pesticides, you should master the "four do not".
First, alkaline fertilizers such as ammonia, lime, and ash should not be mixed with pesticides such as trichlorfon, dimethoate, acesulfame, thiophanate, jinggangmycin, carbendazim, yam, and pyrethroid insecticides. Because most organophosphorus pesticides are easily decomposed under alkaline conditions to reduce the efficacy.
Second, chemical fertilizers should not be mixed with microbial pesticides because chemical fertilizers are highly volatile and corrosive. If they are mixed with microbial pesticides such as acaricidal bacteria and green worms, they are easy to kill microorganisms and reduce the control effect.
The third is alkaline pesticide stone sulphur mixture, Bordeaux mixture, rosin mixture, etc., do not mix with ammonium bicarbonate, ammonium sulfate, ammonium nitrate, ammonium chloride and other ammonium fertilizers and calcium phosphate and other chemical fertilizers, otherwise it will easily cause ammonia volatilization loss, Thereby reducing the fertilizer efficiency.
Fourth, pesticides containing arsenic, such as calcium arsenate, aluminum arsenate, etc., should not be mixed with potassium salts or sodium salt fertilizers, otherwise soluble arsenic will be produced and phytotoxicity will occur.
This article URL: What are the precautions for the application of pesticides and fertilizers?
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