A study on the organic matter balance in the soil of farmland of Huang-Huai-Hai Plain
1988
Wang Weimin | Zhang jingqing | Wang Wenshan (Chinese Academy of Agricultural Sciences, Beijing (China). Inst. of Soil and Fertilizers)
Yearly mineralization rates of soil organic matter, humification coefficients of various organic substances incorporated into the soil, and the decomposition rate of humus formed from corn stalks were studied in the Huang-Huai-Hai Plain. Using 0.3 and 0.2458 as the representative values of humification coefficient of incorporated substances and decomposition rate (r) of the humus formed from them, respectively, the accumulation rates of humus originated from the organic substances incorporated into a field soil in an amount exceeding the requirement for maintaining the original soil organic matter content were estimated.
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