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研究了红壤微生物量与土壤养分循环及植物生长的内在联系．结果表明，红壤微生物量不仅与土壤有机碳、全氮、有效氮等显著相关，而且与植物干物质产量及吸Ｎ 量也存在着良好的相关性，可作为指示红壤肥力水平和作物产量的重要指标．试验测得的红壤微生物量Ｎ 周转期较短，每年通过微生物周转的Ｎ 素达到微生物量氮含量的１ ．５ 倍到数倍．
The relationship between soil microbial biomass and soil nutrient cycling and plant growth was studied. The results showed that soil microbial biomass was not only significantly related to soil organic carbon, total nitrogen and available nitrogen, but also had a good correlation with plant dry matter yield and N uptake, which could be used as an indicator of red soil fertility and crop yield index. Soil microbial biomass measured in the experiment had a short N-week turnover, reaching 1 per year of microbial biomass N through the turnover of microorganisms. 5 times to several times.