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中国农業科学院土壤肥料研究所从1958年7月份起在該院南圃场小麦卫星地結合深耕、施肥(深耕1.5米,每亩施厩肥30万斤,豆餅2,900斤,硫銨800斤,共折合氮3,971斤)研究土壤微生物的活动。观察内容:在土壤微生物方面,有微生物的种类和数量的变化,氨化、硝化、反硝化、分解纖維、分解有机磷等微生物在土壤中的活动,以及土壤中氧化还原势的变化。
Soil and Fertilizer Institute of Chinese Academy of Agricultural Sciences from July 1958 in the hospital Nanpu wheat land combined with satellite deep plowing and fertilization (deep plowing 1.5 m, per mu of manure 300,000 kg, 2,900 pounds of soybean cake, ammonium sulfate 800 pounds, a total of Equivalent to 3,971 kg of nitrogen) to study soil microbial activities. Observations: In terms of soil microorganisms, there are microbial species and quantity changes, ammonification, nitrification, denitrification, decomposition of fiber, decomposition of organic phosphorus and other microorganisms in the soil activity, as well as redox potential changes in the soil.