Peanut fertilization points

  In order to obtain high yield of peanuts, it is necessary to fertilize to meet the nutrient requirements for normal development and growth of peanuts. Peanuts are calcium-producing plants suitable for growth on slightly acidic sandy loam. The rhizobium at the seedling stage cannot provide nitrogen sources for the peanuts, and the nutrients needed should be absorbed from the soil, that is, by fertilization. In the beginning of flowering under the needle to peanut pod stage is vegetative and reproductive growth stage hand, a strong period of growth is peanuts, peanut at this time of rapid increase in demand for nutrients into the peanuts large fruit growing period requires a lot of nutrients The absorption of nitrogen, phosphorus, potassium and calcium has reached the highest peak. Especially the effect of calcium on yield and quality of great peanut, peanut calcium deficiency not only slow growth, pod development is not normal, but also increase the rate of shell, seed shrinkage is not full, thereby reducing the peanut quality. And urea, ammonium bicarbonate and other ammonium nitrogen have an anti-calcium action captures (nitrate peanut plant and promotes absorption of calcium pod), you should select selection fertilizers or fertilizers containing nitrate fertilizer, the effect of the most good. Before the flowering lower needle period, 20 kg of phosphorus nitrate (potassium) fertilizer was applied per acre , in the late growth stage of peanuts. 1kg of nitric acid phosphate and 100 g of borax (or boric acid) 100 g of ammonium molybdate mixed with 50 kg of water, for foliar application, satisfactory results will receive.