除增加根瘤的数目和根瘤重量、提高根瘤的固氮活性外，还能延长根瘤的固氮时期，提高籽实的产量。

So, it prolongated the stage of N_2-fixing of soybean nodule and increased the soybean grain yield.

youdao

除增加根瘤的数目和根瘤重量、提高根瘤的固氮活性外，还能延长根瘤的固氮时期，提高籽实的产量。

So, it prolongated the stage of N_2-fixing of soybean nodule and increased the soybean grain yield.

youdao