How can chemical fertilizers and pesticides mix without destroying ingredients?

Usually, pesticides and fertilizers can't be mixed, otherwise they will probably destroy their respective ingredients, but this is not absolute. Let's take a look at it with Xiaobian.

Solid pesticides and fertilizers can generally be mixed directly. Solid-liquid mixing or liquid-liquid mixing should first consider the changes that may occur after mixing. After mixing, the application time and the depth of application must take into account the full effect of fertilizer efficiency and efficacy. The medicine and fertilizer mixture should be applied as base fertilizer. After the fertilizer and pesticides are mixed, the requirements for fertilization and pesticides for disease prevention, pest control and herbicide elimination are often not completely unified. Therefore, the pesticides based on chemical fertilizers are mainly herbicides , with less insecticides and more fungicides. less.

(1) Alkaline pesticides such as Bordeaux mixture, stone sulphur mixture, and rosin mixture cannot be mixed with ammonium nitrogen fertilizer or ammonium superphosphate such as ammonium carbonate, ammonium sulfate, ammonium nitrate or ammonium chloride to avoid ammonia volatilization or precipitation, thereby reducing Fertilizer effect.

(2) Alkaline fertilizers such as ammonia, lime, grass ash, etc. cannot be combined with trichlorfon, dimethoate, acesulfame, methamidophos, methyl thiophanate, jinggangmycin, carbendazim, scutellaria, and pyrethrum Mix pesticides such as ester insecticides, otherwise it will reduce the efficacy. Because most organophosphorus pesticides are prone to decomposition failure under alkaline conditions.

(3) Fertilizers cannot be mixed with microbial pesticides because chemical fertilizers are volatile and corrosive. If they are mixed with microbial pesticides such as acaricidal bacteria and blue worms, they are easy to kill microorganisms and reduce the control effect.

(4) Pesticide containing arsenic cannot be mixed with potassium salt or sodium salt. For example, if calcium arsenate or aluminum arsenate is mixed with potassium salt or sodium salt fertilizer, soluble arsenic is generated and phytotoxicity occurs. In all the mixed use of fertilizers, the most mixed fertilizers and herbicides, followed by pesticides, and less fungicides .

(5) Plant growth regulators and fertilizers, especially high-yield (sodium nitrophenolate), spray Shibao, foliar treasure, micro-fertilizer, the effect is remarkable. For example, triacontanol is mixed with urea, potassium dihydrogen phosphate, ammonium molybdate, borax, and the like.

For more pesticide information, please pay attention to the pesticide network ()

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