Adding soy milk slurry to fresh cow dung: Add 2.5 kg of soy milk to 100 kg of fresh cow dung, mix it evenly in the tank, and seal it at 25 °C for 3-6 days. The fertilizer efficiency is higher than the equivalent amount of ammonia. Note that the application of water should be 2-3 times.
Adding superphosphate method to human excrement: Add 5 kg of superphosphate per 100 kg of human excrement, stir evenly, and store for 5-10 days. Through chemical reaction, the volatile ammonium carbonate in human excrement can be converted into stable ammonium phosphate, which can effectively prevent the loss of nitrogen volatilization, increase the phosphorus content in human excrement, and improve the quality of fertilizer. Phosphorus retention effect.
Adding ferrous sulfate (green sputum) method to human excrement: adding 500-600 g of ferrous sulfate per 100 kg of human excrement can convert ammonium carbonate in human excrement into stable ammonium sulfate to protect fertilizer Deodorization prevents the loss of nitrogen volatilization.
Method of adding salt to human excrement: 5 kg of superphosphate and 3 kg of salt per 100 kg of human excrement are added, and the mixture is fully stirred and fermented for 10 days to increase the nitrogen content. Note that it should be 2-3 times more water for pouring.
Mixing of super-calcium phosphate with grass and ash: After pulverizing 1 kg of superphosphate, add 2.5 kg of water and mix well to let it precipitate naturally; then soak 3 kg of ash and 5 kg of water for 1 hour, and finally separate the leachate and mix it with water 50. A kilogram of spray, the effect is comparable to potassium dihydrogen phosphate.
Mixing superphosphate with manure and compost: adding 20% ​​superphosphate to compost and manure, stirring evenly, stacking for 20-25 days, can prevent the loss of nitrogen in manure, accelerate the process of composting of manure compost, increase The effective phosphorus content improves the quality of manure and compost.
Add ammonium bicarbonate to the compost: cut the crop stalk into short sections of 5-10 cm long, add ammonium bicarbonate which accounts for 1% of the total mass of the stem, add the appropriate amount of human waste and build it, and then cover it with mud. Sealed, after being cooked, it becomes a highly effective biological potassium fertilizer.
Source: Rural Practical Technology
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