Make good use of base fertilizer when sowing peanuts and soybeans

Some farmers do not apply any fertilizer when sowing these crops, which is one of the important reasons that restrict the yield of peanuts and soybeans. Although legume crops can use the nitrogen fixation function of rhizobium to absorb nitrogen in the air to supplement nutrients, the amount of nitrogen fixation is only 2 × 3-1 × 2 of the total absorption, and phosphorus and potassium nutrients are mainly supplied by soil and fertilization. Therefore, the scientific application of base fertilizer during sowing is an important measure to further improve the yield level of peanut and soybean. The variety, dosage and application method of base fertilizer can choose any of the following according to their respective conditions: 1. Use commercial organic fertilizer as base fertilizer. In recent years, the total amount of nitrogen, phosphorus and potassium supplied by the commercial organic fertilizer subsidy program in our city can reach more than 8%. When sowing peanuts and soybeans, the amount used per mu is 80-120 kg, worth 25.6-38.4 yuan. When applied, it can be directly used as seed fertilizer, so there is no need to worry about the effect of fertilizer on seed emergence. 2. Compound fertilizer is used as base fertilizer. For those who use mechanical cultivated land when sowing, ploughing and ploughing with 25-30kg compound fertilizer with high phosphorus, low nitrogen and potassium concentration (25%) per mu. If the mechanical cultivated land is not carried out and the fertilizer is directly used as a kind of fertilizer, the amount of fertilizer per mu should not exceed 10 kg. 3. Phosphate fertilizer is used as base fertilizer. About 20 kg of calcium superphosphate per mu was used as seed fertilizer when sowing. However, after emergence, about 5 kg of urea per mu was used to apply seedling fertilizer.