摘要
对河北省主要土壤中固定态铵的含量和理化性状的分析表明 :河北省主要土壤类型中固定态铵的基础含量为 1 2 4 6～ 2 4 0 8mg/kg ,占土壤全氮含量的 1 3 5 3%～ 2 9 5 8% ,占土壤无机氮含量的 76 5 8%～ 91 66% ;有机氮仅占土壤全氮的 66 65 %～ 83 40 % ;固定态铵与土壤质地、有机质、全氮、铵态氮之间有一定的相关性。
Soil was sampled on sinnamon and fluvo-aquic soils in Hebei Province. The relationship between the fixed ammonium content and physical-chemical properties was analyzed. Results showed that the fixed ammonium content in the main soils in Hebei was 124.6～240.8 mg/kg, which took 13.53%～29.58% of the total N and 76.58%～91.66% of the inorganic N. It was the main part of the soil N. The organic N took only 66.65%～83.40% of the total N. The fixed NH 4 content was related to the soil texture, organic matter, total nitrogen and ammonium nitrogen in a certain degree.
出处
《河北农业科学》
2004年第3期39-42,共4页
Journal of Hebei Agricultural Sciences
关键词
褐土
潮土
固定态铵
含量
理化性状
氮素转化
Sinnamon and fluvo-aquic soils
Fixed ammonium
Physical and chemical properties.
