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机构地区:[1]河北农业大学资源与环境科学学院,河北保定071001 [2]河北省土壤肥料总站,河北石家庄050022
出 处:《安徽农业科学》2009年第9期4102-4104,共3页Journal of Anhui Agricultural Sciences
摘 要:[目的]为定州市农业的可持续发展提供科学依据。[方法]以定州市菜地0~20 cm耕层土壤样品为材料,分析其容重、pH值和有机质、全氮、速效磷、速效钾、有效铁、有效锰、有效铜、有效锌含量。通过构建不同评价指标的函数模式,对定州市的土壤质量进行评价。[结果]定州市各镇土壤中,全氮和有效锰含量处于低等水平,速效钾含量处于缺乏状态,有效铜含量处于丰富水平。多数乡镇的土壤有机质和有效锌含量处于低等水平,速效磷和有效铁含量处于中等和丰富水平。17个乡镇的土壤容重大于1.40 g/cm2。土壤pH值主要集中在7.55~8.05之间。留春乡土壤的综合评价值最低,周村乡土壤的综合评价值最高,分别为0.462和0.619。[结论]定州市菜地土壤质量的综合评价值在0.462~0.619之间。总体土壤质量有待提高。[Objective] The aim was to provide the scientific basis for the sustainable development of Dingzhou s agriculture.[Method]With soil samples of 0-20 cm arable soil from vegetable land of Dingzhou City as the materials,their bulk density,pH value and contents of organ,total N,available P,K,Mn,Cu,Zn were analyzed.Through construction of function model on different evaluation index,the soil quality in Dingzhou city was evaluated.[Result]In vegetable soil of each town of Dingzhou City,the contents of total N and available Mn were in low level, and that of available K was lack and that of available Cu was rich. In the soil in most towns, the contents of organ and available Zn were low and those of available P and Fe were medium and rich. The bulk density of soil from 17 towns was bigger than 1.40 g/cm2. The pH value of soil varied from 7.55 to 8.05. The conIpouad evaluation value of the soil from Liuehun town was the lowest and that from Zhoucun town was the highest, being 0.462 and 0.619 resp. [ Conclusion ]The compound evalu- ation value of vegetable soil in Dingzhou city was 0.462-0.619. The total quality of soil needed to be improved.
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