Use ammonium bicarbonate and copper sulfate as raw materials for self-contained pesticides: take 3.8 kg of ammonium bicarbonate and 0.5 kg of copper sulphate which has been ground into a powder. Immediately after mixing, add 1 kg of lime mixture and seal it in a container for 24 hours. "Cu-ammonium powder." When used, copper ammonium powder is diluted 1200 to 1500 times the copper content to form a "composite of copper and ammonium." Spraying vegetables and cotton can not only prevent fungal and bacterial diseases, but also have the effect of top dressing.
Mixing with ammonium bicarbonate and farmyard fertilizer Deep application: When planting potatoes and sweet potatoes, 20~25 kg of ammonium bicarbonate per 667 square meters is mixed with farmyard fertilizer and applied in the cultivation ridges to drive and kill the infested seedlings. . Before planting vegetable seeds or seedlings such as leeks, garlic, cowpea, cucumber, etc., use 25-30 kg of ammonium bicarbonate per 667 square meters and farmer's manure to mix thoroughly and deepen. This can kill root larvae and small tigers and reduce the incidence of these underground pests. Harm.
Diluted ammonium bicarbonate and sprayed the leaves of the crop: When aphids occur in fruits and vegetables, dilute the ammonium bicarbonate 80- to 100-fold and spray evenly on the stems and leaves of these crops with a sprayer to kill the aphids and reduce the disease. , bacterial and viral diseases.
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