1. Alkaline fertilizer ammonia, lime nitrogen, turfgrass, etc. cannot be used together with pesticides such as trichlorfon, dimethoate, methamidophos, imidoxime, thiophanate-methyl, carbendazim, leaf glycosides, pyrethroid insecticides, etc. Mixed use, otherwise it will reduce the efficacy. 2. Alkaline pesticide lime sulfur, Bordeaux mixture, rosin mixture, etc., can not be mixed with ammonium bicarbonate, ammonium sulfate, ammonium nitrate, ammonium chloride and other ammonium nitrogen fertilizer and superphosphate, etc., otherwise it will cause loss of ammonia volatilization, reduce fertilizer efficiency . 3. Arsenic-containing pesticides, such as calcium arsenate and aluminum arsenate, cannot be mixed with potassium salts and sodium salts. Otherwise, soluble arsenic will be produced and phytotoxicity will occur. 4. Chemical fertilizers cannot 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 insecticides, it is easy to kill microorganisms and reduce the control effect. China Agricultural Network Editor