Main Technical points of fertilization for Peanut

The principles of peanut fertilization are as follows: heavy base fertilizer, appropriate amount of topdressing, mainly organic fertilizer, supplemented by chemical fertilizer, organic-inorganic combination. The amount of base fertilizer generally accounts for about 80% of the amount of fertilizer applied. Medium fertility plots: generally, about 2000 kg of high-quality farm manure, 40 kg of cake fertilizer, 4 kg of nitrogen (N), 7 kg of phosphorus (P2O5) and 7 kg of potassium (K2O) are applied per mu. When applied, organic fertilizer is used as the bottom, fine fertilizer is covered, and the fertilizer and soil are mixed evenly. Peanut topdressing should be based on available nitrogen and phosphorus fertilizer. Nitrogen fertilizer is the main topdressing at seedling stage, because the nitrogen in the seeds is exhausted at this time, but the nitrogen fixation ability of rhizobium has not been brought into full play, which is the critical period of nitrogen nutrition of peanut. Combined with ploughing, 3kg of urea can be recovered per mu. In the flowering stage, topdressing should be done once, mainly phosphate fertilizer, combined with a certain amount of nitrogen and potassium fertilizer. Per mu can recover urea 2kg, calcium superphosphate 8kg, potash fertilizer 3kg. In addition, peanuts are very sensitive to molybdenum. Spraying 0.1%-0.2% ammonium molybdate solution at seedling stage and full flowering stage can promote nitrogen fixation of root nodules and increase yield significantly.