固原市原州区土壤养分含量的测定与评价

[目的]对固原市原州区11个乡(镇)的耕地土壤养分进行研究.[方法]采用土壤养分常规分析法.[结果]土壤有机质平均含量为14.44 g/kg,全氮平均含量为0.998 g/kg,碱解氮平均含量为68.83 mg/kg,有效磷平均含量为5.82 mg/kg,速效钾平均含量为151.98 mg/kg,有效锌平均含量为0.768 mg/kg,有效铜平均含量为0.989 mg/kg,有效铁平均含量为5.017 mg/kg,有效硫平均含量为11.719mg/kg,有效锰平均含量为11.601 mg/kg,全磷平均含量为0.759g/kg,全钾平均含量为0.593g/kg.[结论]固原市原州区耕地土壤有效钾含量属较丰水平,有效铜含量属中等水平,其余养分指标均属于较低水平.

Measurement and Evaluation on Soil Nutrient Content in Yuanzhou County of Guyuan City

[Objective] To study soil nutrients in 11 villages of Yuanzhou County,Guyuan City.[Method] Conventional analysis method of soil nutrient was used.[Result] The average content of soil organic matter was 14.44 g/kg,total nitrogen 0.998 g/kg,alkali hydrolysable nitrogen 68.83 mg/kg,effective phosphorus 5.82 mg/kg,available potassium 151.98 mg/kg,effective zinc 0.768 mg/kg,effective copper 0.989 mg/kg,effective iron 5.017 mg/kg,effective sulfur 11.719 mg/kg,effective manganese 11.601 mg/kg,total phosphorus 0.759 g/kg,total potassium 0.593 g/kg.[Conclusion] The cultivated soil available potassium is relatively abundant,effective copper belongs to medium level,the remaining nutrient index all belong to the lower levels in Yuanzhou County of Guyuan City.