The zone change of soil microbial biomassC and N from north to south was not distinct.
土壤微生物量C、N从北到南的地带性变化规律不强。
2
Besides, applying fertilizer improved soil microbial biomassc, however, divergence between NPK and Ntreatment is not marked.
施用肥料能提高土壤微生物量碳的含量，但NPK处理与N处理差异不大。
3
The microbial biomassC and N were lowest in no-tillage 10 and 7~8 years, respectively, and then decreased along with the the no-tillage years increasing.