The issue whether starter N will increase nodulation and BNF is, however, complicated by several factors.
然而，“起动氮”
否会增加根瘤和生物固氮的问
杂的，它受多种因
影响。
The issue whether starter N will increase nodulation and BNF is, however, complicated by several factors.
然而，“起动氮”否会增加根瘤和生物固氮的问杂的，它受多种因影响。
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