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通过对3个大豆品种的试验表明:施用锰肥能促进大豆根瘤的固氮作用、植株体内的硝酸盐还原过程和蛋白而的合成过程。缺锰使植株体内硝酸盐和某些氨基酸大量积累,从而降低蛋白态氮与非蛋白态氮的比值,施锰肥可提高大豆产量4. 7%-19. 7%,提高籽粒中纯蛋白含量2. 7%-9. 6%。
The experiment on three soybean varieties showed that the application of manganese fertilizer could promote the nitrogen fixation of soybean nodule, the process of nitrate reduction in plant and the synthesis of protein. Manganese deficiency causes a large accumulation of nitrate and some amino acids in the plant, thereby reducing the ratio of protein nitrogen to non-protein nitrogen. The application of manganese fertilizer can increase soybean yield by 4.7% -19.7% and increase the pure protein content 2. 7% -9. 6%.