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为了全面掌握当前耕地土壤的地力状况,我县2008-2015年开展了全县耕地地力评价工作。根据项目调查的结果,重点就泗洪县耕地土壤的养分现状作出评价,剖析土壤养分方面存在的问题和影响因素,并提出进一步推广平衡施肥的技术对策。1土壤养分现状土壤养分调查结果与历史资料统计分析表明:全县耕地土壤常规养分变化动态表现为土壤有机质、全氮、有效磷均呈上升趋势,速效钾变化不大,各类型土壤p H值相对降低。
In order to fully grasp the status of the soil fertility of arable land, the county from 2008 to 2015 to carry out the county land productivity evaluation. According to the results of the project survey, the status of soil nutrients in cultivated land in Sihong County was evaluated. The problems and influencing factors in soil nutrients were analyzed, and the technical countermeasures for further promoting balanced fertilization were put forward. 1 Soil Nutrient Status The survey results of soil nutrients and statistical analysis of historical data show that the dynamic changes of soil conventional nutrients in cultivated land all show an upward trend of soil organic matter, total nitrogen and available phosphorus, with little change of available potassium. Soil p H Relatively lower.