In Huaibei, the short hours of light in autumn, coupled with the late planting of potato stalks, have a certain impact on peanut yield. In order to increase yield, the following measures should be taken:
1. Fertilize twice. The first time in the emergence of peanuts to peanut flowering, fertilization requires 12.5 kg of urea per acre, or 40-50 kg of ammonium bicarbonate. This can supplement the formation and nutritional needs of peanut seedling rhizobium, which is beneficial to branching, flowering and needle down. The second time was under the peanuts. At this time, the plant grows rapidly, the peanuts bloom a lot, the flower needles form a large amount, absorb nutrients, and the growth rate is the most and the fastest period. At this time, the fertilization effect is the best. It is required to apply 15-20 kg of diammonium per acre and 10-15 kg of potassium chloride.
2, foliar topdressing. Peanut leaves are thicker, and they are prone to premature aging and black hair. Replenishing foliar fertilizer is beneficial for regulating its physiological activity and increasing yield. It can spray 0.2% potassium dihydrogen phosphate solution, urea 0.1%-0.2% solution, and increase 1000 times liquid.
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