Urea solution: The commonly used concentration is 0.5%-1%, 0.5-1 kg urea, 100 kg of fresh water. Diamine content of urea toxic substances more than 1.5%, can not be used for foliar fertilizer.
Urine washing mixture solution: It has two functions of supplying nitrogen and eliminating cesium. Weigh urea 0.5-1 kg, water 100 kg, and then dissolved into the detergent 70-100 grams. Along with the spray, do not put long after the match.
Superphosphate Leachate: It has the function of supplementing phosphorus and controlling cotton pests. Take 2-3 kilograms of high-quality powdery superphosphate and dilute 100 kilograms of water, mix well, place it for 24 hours, filter, and take the foliar spray of the filtrate.
Nitrogen, phosphorus and potassium mixed solution: Prepare 100kg of 2%-3% concentration of superphosphate water leachate, add 0.3-0.5kg of urea and 1-1.5kg of potassium sulfate.
Plant ash leaching solution: Take 5-7 kg of fresh grass ash without rain, 100 kg of fresh water, stir for 14 hours, and spray the clear liquid.
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