Adding ammonium bicarbonate method for composting manure: cutting the crop stalk into pieces, adding 0.5-1% ammonium bicarbonate and appropriate amount of human excrement for stacking, sealing with mud, and becoming a good bio-potassium fertilizer after decomposing.
Fresh cow dung added soy milk slurry method: add 1.25 kg of soy milk powder per 50 kg of fresh cow dung, mix it by hand, seal it for 3-6 days at 25 °C, 3 times with water for topdressing, and its fertilizer efficiency is higher than that of ammonia. ,
Add calcium superphosphate method to grass ash: add 10 kg of water per 6 kg of grass ash, soak for 6 hours, then filter to remove the solution for use; take 2 kg of superphosphate powder, add water and stir evenly, let it precipitate after natural precipitation, then take two The solution is mixed and sprayed with 100 kg of water to obtain the same fertilizer effect as potassium dihydrogen phosphate.
Adding gypsum powder to human excrement: Add 5 kg of gypsum powder to every 50 kg of human excrement, add 25 kg of water, mix and mix evenly, and use it after 10 days of storage to reduce the loss of nitrogen volatilization and increase fertilizer efficiency.
Adding ferrous sulfate to human excrement: Adding 300 g of ferrous sulfate (green strontium) to every 50 kg of human excrement can convert ammonium carbonate in urine into stable ammonium sulfate.
Adding super-calcium phosphate to human excrement: Add 2.5 kg of superphosphate in every 50 kg of human excrement, mix and store for 5-7 days, not only prevent nitrogen loss, but also greatly improve fertilizer utilization.
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