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采用培养试验研究了侵蚀红壤 ,培肥后的红壤以及不同利用方式红壤氮素的矿化和硝化作用特征。结果表明 ,侵蚀红壤的矿化作用和硝化作用都很微弱 ,采用适宜的施肥措施培肥后氮素的矿化和硝化速率都有很大提高 ;红壤氮素的矿化和硝化速率与土壤 pH、速效磷含量和有机质含量呈显著正相关。
Cultivation experiments were conducted to study the characteristics of mineralization and nitrification of eroded red soils, red soils after fertilization and nitrogen utilization in red soils under different utilization patterns. The results showed that both the mineralization and nitrification of eroded red soils were very weak. The mineralization and nitrification rates of fertilized red soils increased greatly with appropriate fertilization practices. The mineralization and nitrification rates of red soils varied with soil pH , Available phosphorus content and organic matter content showed a significant positive correlation.