The fertilization amount of peanuts in the whole reproductive cycle is 250-300 kg of commercial organic fertilizer, 8-11 kg of nitrogen fertilizer, 4-6 kg of phosphate fertilizer, and 7-8 kg of potassium fertilizer. Organic fertilizer is used as base fertilizer, nitrogen and potassium fertilizer are divided into base fertilizer and topdressing twice.
base fertilizer:
Applying organic fertilizer 250-300 kg per mu, urea 6-8 kg diammonium phosphate 9-13 kg, potassium chloride 6-7 kg, zinc-deficient soil can be applied 1-2 kg of zinc sulfate per mu, boron-poor soil per mu The borax can be applied 0.25-0.5 kg, and the molybdenum fertilizer can be soaked with 0.2-0.35% ammonium molybdate solution. Acidic soil can be used for 25-50 kg of slaked lime per acre, and 5-7.5 kg of raw gypsum powder per acre of alkaline soil.
top dressing:
In the case of insufficient base fertilizer, the seedling stage can be properly topdressed. From the flowering stage to the drum stage, the top dressing should be carried out according to the growth trend. Generally, 8-11 kg of urea and 7-8 kg of potassium chloride are applied.
Top dressing:
After the peanuts are needle-pod, the 2%-3% aqueous solution of superphosphate can be sprayed 2-3 times for 7-10 days. If the flower growth is weak, 100-200 grams of urea can be added and sprayed. Zinc-deficient and boron-deficient soils can be sprayed with 0.1%-0.2% zinc sulfate or borax aqueous solution from the seedling stage to the initial flowering stage without continuous application of zinc and boron.
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