How to apply fertilizer scientifically

Mung bean has a short growth period, strong barren tolerance, and its root system has the ability of symbiotic nitrogen fixation, so there is often no fertilization in production, but in order to improve the mung bean yield in medium and low yield plots, more fertilizer should be applied. General mu application of fertilizer diammonium phosphate or nitrogen, phosphorus, potassium compound fertilizer about 10 kg. In the hilly thin land where the soil fertility is poor and does not apply base fertilizer and seed fertilizer, after the first compound leaf of mung bean is unfolded, combined with intermediate ploughing, urea per mu can be topdressing 3 kg, or compound fertilizer 8 to 10 kg. It has an obvious effect on increasing production. In the land with high fertility, the seedling stage should be mainly controlled, not topdressing, too much nitrogen fertilizer, which will lead to excessive vegetative growth, open stems and leaves, shade in the field, plant lodging, serious flower and pod drop, and reduce the yield of mung bean.