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以太原市旱作农田土壤为研究对象,系统分析5种耕作土壤8种养分特征。结果表明,耕作土壤养分中速效钾变异系数最大,全氮变异系数最小;不同耕作土壤全氮、有机质、有效磷、速效钾和微量元素有效铁、锰、铜和锌差异在0.05水平显著。有效磷和速效钾平均含量表现为:玉米地>麦地>大豆地>马铃薯地>谷子地,全氮、有机质和微量元素的含量表现为:玉米地>麦地>大豆地>谷子地>马铃薯地。
Taking the dry farmland soils of Taiyuan city as the research object, eight kinds of nutrient characteristics of the five kinds of cultivated soils were systematically analyzed. The results showed that the coefficient of variation of available potassium in tillage soil was the largest and the coefficient of variation of total nitrogen was the lowest. The differences of available N, organic matter, available phosphorus, available potassium and trace elements available iron, manganese, copper and zinc in different tillage cultivars were significant at 0.05. The contents of available phosphorus and available potassium were as follows: Corn field> Corn field> Soybean field> Potato field> The contents of total nitrogen, organic matter and trace elements in corn field were: corn field> corn field> soybean field> millet field> potato Ground