The issue whether starter N will increase nodulation and BNF is, however, complicated by several factors.
然而，“起动氮”是否会增加根瘤和生物固氮
问题是复杂，它受多种因素
响。
The issue whether starter N will increase nodulation and BNF is, however, complicated by several factors.
然而，“起动氮”是否会增加根瘤和生物固氮问题是复杂，它受多种因素响。
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