Method for improving farmer's fertilizer efficiency
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1. Add calcium phosphate in human excrement: add 5 kg of superphosphate per 100 kg of human excrement, stir evenly, and store for 5-10 days. Through chemical reaction, ammonium carbonate which is easy to play in human excrement can be converted into ammonium phosphate with stable properties, thereby preventing the loss of nitrogen volatilization, increasing the phosphorus element in human excrement, improving the quality of fertilizer, and protecting ammonia with phosphorus.
2, in the human excrement of household salt: every 100 kg of human excrement, add 5 kg of superphosphate and 3 kg of salt, fully stirred and then fermented for 10 days, can increase its nitrogen content. When used, water is watered 3 times.
3. Add ferrous sulfate (green sputum) to human excrement: Add 500-600 g of ferrous sulfate per 100 kg of human excrement, which can convert ammonium carbonate in human excrement into stable ammonium sulfate. To protect the fertilizer from deodorization and prevent the loss of nitrogen volatilization.
4. Add soy milk in fresh cow dung: Add 2.5 kg of soy milk to 100 kg of fresh cow dung, mix well in the tank, and seal for 3-6 days at 25 °C. Its fertilizer efficiency is higher than the equivalent amount of ammonia. When applying, it needs to be watered 3 times for topdressing.
5. Add superphosphate in manure and compost: add 20% superphosphate in compost and manure and mix well. Stacking for 20-25 days can prevent the loss of nitrogen in manure and accelerate the process of composting compost. Increase the effective phosphorus content and improve the quality of manure and compost.
6. Mixing superphosphate with ash: Mix 1 kg of superphosphate and add 2.5 kg of water to mix evenly, let it precipitate naturally. In addition, 3 kg of grass ash and 5 kg of water were soaked for a period of time. Finally, the two leaching leaves are filtered and mixed to form a potassium dihydrogen phosphate equivalent to spraying 1 mu of field. Spray 50 kg with water when using.
7. Soil-based production of potassium carbonate: soak the ash in water for about 5 minutes, stir evenly, and then filter it with white gauze. The dark yellow liquid filtered is liquid potassium carbonate fertilizer with a concentration of about 2%. The concentration is 0.5%, that is, 1 kg of liquid potassium carbonate and 4 kg of water are used for foliar spraying, and it can also be used as base fertilizer and seed fertilizer.
Source: Lin'an Agricultural Information Network