By returning straw, planting Chinese milk vetch, and using good manure fertilizer, the amount of chemical fertilizer can be reduced.
Straw returned to the field 200 kg of straw per acre, you can apply less 20% of the phosphate fertilizer and potash, that is, less than 2 kg of potassium chloride and 5 kg of superphosphate per acre, save 15 yuan per mu fertilizer. Before the straw is returned to the field, a certain amount of nitrogen needs to be consumed, and the amount of nitrogen fertilizer in the early stage should be increased to reduce the amount of nitrogen fertilizer in the later period.
The contents of nitrogen, phosphorus and potassium in Ziyun Ying Ziyunying were 0.48%, 0.11% and 0.24%, respectively, that is, 500 kg of Ziyun Ying buried per acre could not use 5 kg of urea, 5 kg of superphosphate and 2 kg of fertilizer. Potassium chloride saves 25 yuan per mu fertilizer. The method of planting Ziyunying is simple. The yield per mu is 1,500 kg, and the average per mu is 500 kg.
Application of farmhouse manure fertilizer to farmers can reduce the amount of fertilizer and save costs. However, the accumulation and application methods of farmyard manure will cause serious loss of nutrients and will not achieve the effect of increasing fertilizer. When storing farmyard fertilizers, seal work should be done to prevent evaporation and leakage of fertilizers. Fertilizers should be fully decomposed to increase the speed of nutrient release and kill parasites, germs and weed seeds. Farmyard manure should be used as a base fertilizer and can not be stored and applied with alkaline fertilizers such as grass ash.
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