Mixed use of pesticides and fertilizers, the efficacy of fertilizers should be exerted, and it can not affect the physical and chemical properties of the fertilizers, and can not have harmful effects on the crops.
In general, solid pesticides and fertilizers are directly mixed, and the requirements are not very strict, and liquid pesticides and methamidophos, as well as thiophanate, Jinggangmycin, Yeqisan, Kuweiwei, etc., cannot be mixed with ammonium bicarbonate, ammonia water, and ash. Mix limestone and the like. Alkaline pesticides, such as stone sulphur, Bordeaux and rosin, cannot be mixed with chemical fertilizers such as calcium phosphate, ammonium sulfate, ammonium nitrate or ammonium chloride. arsenic-containing pesticides cannot be mixed with sodium and potassium fertilizers. .
Mixing pesticides with pesticides is also prone to phytotoxicity. The antibacterial WP can be mixed with the parathion emulsion, and the adhesion and permeability of the agent are changed due to the action of the surfactant, which causes phytotoxicity in the rice.
The cockroach is mixed with an organophosphate insecticide, a bactericide or a carbamate killing agent, and the organophosphate or carbamate inhibits the action of the amide hydrolase which decomposes the enemy in the rice, thereby causing phytotoxicity in the rice. Enemy or chlorpyrifos can not only be mixed with organophosphorus or carbamate insecticides, nor can it be used in tandem, otherwise it is easy to cause phytotoxicity to rice.
In the citrus, the combination of the enemy and the emulsion pesticides is easy to increase the phytotoxicity. In the pear tree, multi-fruit combination with emulsion pesticides will increase the phytotoxicity. It is also prone to phytotoxicity when sputum manganese and similar drugs are mixed with vegetables and daisen zinc or daisen ring. A single agent uses a drug that is apt to cause phytotoxicity. If an emulsion agent is blended, it has a tendency to aggravate the phytotoxicity. When deltamethrin (enemy kill) is mixed with an organophosphorus pesticide, it will increase the phytotoxicity to crops. Benzimidazole pesticides cannot be mixed with copper-containing pesticides, otherwise they will cause phytotoxicity to crops. Bordeaux mixture is mixed with stone sulfur mixture, which is easy to cause phytotoxicity to plants. Organophosphorus pesticides are mixed with rosin mixture, which is easy to cause phytotoxicity to crops.
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