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对我国三种土壤类型的农田土壤剖面的硝化势进行研究 ,结果表明 ,培育 2 8天时的土壤硝化势与土壤pH值存在着极显著的正相关 ,r =0 75 0 ,土壤剖面各层土壤有机质含量与土壤硝化势也呈正相关 ,但统计没有达到极显著。说明土壤 pH和土壤有机质含量是影响硝化作用的主要因素。同时对 3种土壤上氮肥通过淋洗和反硝化损失的可能性进行了推测
The nitrification potentials of soil profiles in three soil types in China were studied. The results showed that there was a significant positive correlation between soil nitrification potential and soil pH value at 28 days of incubation (r = 0 75 0). Soil layers Organic matter content and soil nitrification potential is also positively correlated, but the statistics did not reach extremely significant. Soil pH and soil organic matter content is the main factor affecting the nitrification. At the same time, the possibility of nitrogenous fertilizer leaching and denitrification loss on the three soils was also speculated