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为明确长垣县农田土壤养分状况,2006~2011年结合国家测土配方施肥项目,对长垣县农田耕地土壤养分进行了普查,共取土样6 300个,进行了常规和微量化验,并进行了统计分析。结果表明:长垣县的土壤基本养分含量分别为有机质13.78 g/kg、全氮0.83 g/kg、有效磷15.41 mg/kg、速效钾99.61 mg/kg,pH值平均为8.47;微量元素有效锰、有效铁和有效铜的平均含量分别为14.17 mg/kg、10.01 mg/kg、1.42 mg/kg,均超过临界值,总体上处于不缺水平;有效锌平均含量为0.83 mg/kg,7.04%的土壤处于缺锌水平。长垣县耕地土壤养分总体上处于缺磷少氮,部分缺钾、缺锌状况。生产上要大力推广配方施肥,实行秸秆还田,培肥地力。
In order to clarify the status of farmland soil nutrients in Changyuan County from 2006 to 2011, a total of 6 300 soil samples were collected for soil fertility assessment of farmland soil in Changyuan County in accordance with the national soil testing and formulated fertilization project. Conventional and micro- Conducted a statistical analysis. The results showed that the contents of soil basic nutrients in Changyuan County were 13.78 g / kg organic matter, 0.83 g / kg total nitrogen, 15.41 mg / kg available phosphorus and 99.61 mg / kg available potassium, respectively. The average value of pH was 8.47. , The average contents of available iron and available copper were 14.17 mg / kg, 10.01 mg / kg and 1.42 mg / kg, respectively, all exceeding the critical value. Generally speaking, the average content of available zinc and copper was 0.83 mg / kg and 7.04% The soil is zinc deficient. Changyuan County, arable land soil nutrients in general lack of phosphorus and nitrogen, potassium deficiency, zinc deficiency. Production should vigorously promote formula fertilization, the implementation of straw, soil fertility.