There is a wonderful way to reduce the amount of fertilizer

When the straw is returned to the field, 200 kg of straw is returned per mu, and 20% of phosphate and potassium fertilizer can be applied less, that is, 2 kg of potassium chloride and 5 kg of superphosphate are applied per mu, and the fertilizer input per mu is 15 yuan. The straw needs to consume a certain amount of nitrogen in the early stage of returning to the field, and the amount of nitrogen fertilizer should be increased in the early stage to reduce the amount of nitrogen fertilizer in the later stage.

The contents of nitrogen, phosphorus and potassium in Ziyunying Ziyun are 0.48%, 0.11% and 0.24%, respectively. That is, 500 kg of acacia per mu can be used for 5 kg of urea, 5 kg of superphosphate and 2 kg. Potassium chloride saves 25 yuan per mu of fertilizer. The cultivation method of Chinese milk vetch is simple, the yield per mu is 1500 kg, and the general burying is 500 kg per acre.

Applying farmyard manure to farmyard fertilizer can reduce the amount of chemical fertilizer and save costs. However, the improper accumulation and application of farmyard manure will result in serious loss of nutrients and will not increase the fertilizer. Seal the work when accumulating farmyard manure to prevent the volatilization and leakage of fertilizer. Fertilizers should be fully decomposed to increase nutrient release rates and kill parasites, germs and weed seeds. Farmyard manure should generally be applied as a base fertilizer and should not be stored and applied with alkaline fertilizers such as grass ash.