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实验采用正交表Ｌ９（３２），利用不同水平的Ｎ、Ｐ 搭配处理旋扭山绿豆，结果表明Ｎ、Ｐ对旋扭山绿豆的结瘤。固氮和生长都有一定的影响。含Ｐ者，结瘤多，根瘤发育正常，固氮活性高，植株生长良好；缺Ｐ者，植株矮小，结瘤少；低Ｐ 无Ｎ 和高Ｐ 无Ｎ 者均结瘤较多，但高Ｐ低Ｎ 者植株的根瘤的固氮活性最强；高Ｎ 对旋扭山绿豆的固氮有抑制作用。植株的含Ｎ 量随着施Ｎ 水平的提高而提高。
Experiments using orthogonal table L9 (32), the use of different levels of N, P with the deal Twist Hill mung bean, the results show that N, P Knot Knot Twisted Hill moss. Nitrogen fixation and growth have a certain impact. P-containing, nodulation and more, nodulation is normal, high nitrogen fixation activity, plant growth is good; lack of P, short plants, fewer nodules; low P no N and high P no N were more nodules, but high P The N-deficient plants had the strongest nitrogen fixation activity in their nodules. The high N had an inhibitory effect on the nitrogen fixation of Spinachia moss. Plant N content increased with increasing N levels.