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本文采用弘法、大羽、熊田等对Simon的修改法,对因有机培肥而造成肥力水平高、中、低的黑土进行结合形态的测定。结果表明:与游离二、三氧化物结合态的腐殖质和与钙结合态的腐殖质的含量,随土壤肥力的提高而增加,并与有机质的增加量呈显著相关,而与多价盐结合的腐殖质变化不大。前两种结合形态的腐殖质含量又和土壤有机态氮的矿化量呈显著相关。
This article adopts the modification method of Simon, including Hongfa, Oda and Kumada to determine the binding form of black soil with high fertility, middle and low fertility due to organic fertilization. The results showed that the contents of humus and calcium bound humus with free diatomaceous oxide increased with the increase of soil fertility and were significantly correlated with the increase of organic matter, while the content of humus Has not changed much. The content of humus in the first two combined forms was also significantly correlated with the mineralization of soil organic nitrogen.