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[目的]为江夏区土壤培肥改良和农业生产提供科学依据。[方法]于2008年在江夏区采集土样,分析并比较自1981年以来江夏区土壤pH值、有机质、碱解氮、速效磷、速效钾含量的变化情况。[结果]1981~2008年江夏区农田土壤养分含量及理化特性发生了很大变化。2008年土壤有机质、碱解氮、速效磷、速效钾含量分别为23.41 g/kg、106.40 mg/kg、15.00 mg/kg、117.90mg/kg,分别比1981年增加7.68%、7.58%、102.70%、13.15%。2008年96.70%的土壤为中性土,pH值为6.5~7.5。[结论]土壤肥力变化的主要原因是耕作制度、施肥习惯的改变和大片荒山荒地开发为工业用地等因素所致。
[Objective] The research aimed to provide a scientific basis for soil fertility improvement and agricultural production in Jiangxia Region. [Method] Soil samples were collected in Jiangxia district in 2008, and the changes of soil pH, organic matter, available nitrogen, available phosphorus and available potassium in Jiangxia region since 1981 were analyzed and compared. [Result] The nutrient contents and physical and chemical characteristics of farmland in Jiangxia district from 1981 to 2008 changed greatly. The contents of soil organic matter, available nitrogen, available phosphorus and available potassium in 2008 were 23.41 g / kg, 106.40 mg / kg, 15.00 mg / kg and 117.90 mg / kg respectively, up by 7.68%, 7.58% and 102.70% , 13.15%. In 2008 96.70% of the soil is neutral soil, pH value of 6.5 to 7.5. [Conclusion] The main reason for the change of soil fertility was due to the tillage system, the change of fertilization habits and the exploitation of large barren barren land for industrial land.