The effects of plant density and nitrogen fertilization on maize yield and soil microbial communities in the black soil region of Northeast China
Geoderma(2023)
摘要
•High plant density significantly enhanced soil microbial abundance and diversity.•Microbial composition across N rates shared more similarity under high plant density.•High plant density increased AOA and significantly decreased nirS gene abundance.•Increased root biomass, and N uptake mitigated the negative effects of excessive N.
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关键词
Plant density,Microbial species composition,Diversity index,N cycle genes,Mitigating effects
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