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通过对四川紫色土中 3大类微生物数量和土壤中有机质含量 ,全N、全P、全K ,有效N、有效P和有效K含量测量数据的初步分析 ,探讨了细菌、放线菌和霉菌数量与土壤肥力的关系。上述 3大菌类的数量不受单一因子的影响和限制 ,不会因土壤有机质、氮素、磷素和钾素的增减而有规律地升降。紫色土中微生物数量不仅与土壤养分有关 ,而且与土壤其它因素如水分、空气、酸碱性和与之相关的物理化学等综合因素有关
Through the preliminary analysis of three kinds of microorganisms in the purple soil of Sichuan Province and the data of organic matter content, total N, total P, total K, available N, available P and available K in the soil, the bacteria, actinomycetes and mold Relationship between quantity and soil fertility. The number of these three fungi is not affected and limited by a single factor, and will not rise and fall regularly due to changes in soil organic matter, nitrogen, phosphorus and potassium. The number of microorganisms in purple soil is not only related to soil nutrients, but also to other factors such as soil moisture, air, pH, and related physical and chemical factors