左卫镇农田土壤肥力的测定与评价
Measurement and Evaluation of Soil Fertility in the Farmlands in Zuowei Town
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摘要: 为掌握左卫镇农田土壤肥力水平,对左卫镇农田土壤7种指标进行含量测定,并采用内梅罗综合指数法分析农田土壤的肥力水平。结果表明:全氮含量属于丰富水平,全磷和有效磷处于中等偏上水平,速效钾和有机质处于中等偏下水平,碱解氮处于缺乏水平,土壤pH值为6.43~8.59。左卫镇西区的内梅罗综合指数均值为1.01,北区的内梅罗综合指数均值为1.13,东南区的内梅罗综合指数均值为0.95。Abstract: The content of seven indexes was measured to evaluate soil Fertility in the farmlands in Zuowei Town. Level of soil fertility was analyzed by method of Nemerow Index. The results showed that the content of total nitrogen was in the high-level;the content of total phosphorus and available phosphorus was in the uper-minddle level; the content of soil available potassium and organic matter was in the lower-middle level; the content of alkali-hydrolyzed nitrogen was in shortage; the pH value was 6.43-8.59. Analyzed by method of Nemerow index, the average Nemerow index of West District of Zuowei Town was 1.01; the average Nemerow index of North District of Zuowei Town was 1.13; the average Nemerow index of Southeast District of Zuowei Town was 0.95.