How to Supplement Potassium and Potassium Fertilizer for Increasing Soybean Production
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Due to the long period of soybean vegetative growth and reproductive growth, the absorbed nitrogen, phosphorus and potassium are significantly higher than wheat and corn. Therefore, high yield of soybean needs to supply sufficient nutrients, in addition to nitrogen, it also needs to supply more phosphorus and potassium nutrition. The large amount of N, P, and K absorbed by soybeans reaches its peak after flowering and reaches the grain size. Therefore, the application method of soybeans is to apply 10-15 kg of urea per mu before flowering or at the beginning of flowering, and apply the soil to the trenches. . Phosphorus and potassium fertilizers are suitable for spraying with foliar spray. 0.1%--0.3% potassium dihydrogen phosphate solution can be used for about 50 kilograms per mu, which can be carried out for 2 to 3 times, 7-10 days apart.