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Spring soybeans how to fertilize
In the spring soybean plants 15-20 cm high, 6-8 large leaves, the roots to apply a fertilizer, complete with nitrogen and phosphorus potassium fertilizer, and then appropriate to add phosphorus and potassium fertilizer. Per acre nitrogen and phosphorus potassium (15-15-15) compound fertilizer 40-50 kg, 15-20 kg of potassium dihydrogen phosphate. Mix the fertilizer thoroughly and apply it evenly to the soil between the rows of spring soybeans. Then use a spade or shovel to gently turn the topsoil. In this way, the spring beans grow robustly, have many buds, have high scab rates, and have full pods and a significant increase in yield.