大豆属于营养生长和生殖生长并存期长的作物，由于底肥和种肥不能满足大豆一生对营养物质的需求，常常在大豆花荚期产生落花落荚的现象，影响了大豆的产量并使大豆的饱满度下降，品质降低。因此，大豆花荚期补充一定的营养以满足大豆对营养物质的需求是提高大豆产量和品质... Soybean belongs to the crop that grows vegetatively and reproductively and coexists for a long time. Because the base fertilizer and the seed fertilizer can not meet the demand for nutrients in the whole soybean life, the phenomenon of falling flower pod usually occurs in the soybean flower pod stage and affects the soybean yield and the soybean Plumpness, lower quality. Therefore, soybean pod season to add a certain amount of nutrition to meet the needs of soybean nutrients is to increase soybean yield and quality ...