阿荣旗土壤养分现状及变化趋势

Current Situation and Changeable Trend of Soil Nutrient in Arong Banner of Inner Mongolia

2006年通过对阿荣旗29万 hm^2耕地土壤取土化验分析,结果表明:土壤有机质含量平均为47.20g/kg,全氮含量平均为2.36g/kg,有效磷含量平均为23.18mg/kg,速效钾含量平均为163.8mg/kg。与1982、2002年土壤化验结果相比,有机质、全氮、速效钾含量下降明显,有效磷大幅度上升。

Soil was analyzed on 290,000hm^2 cultivated land in Arong Banner in 2006.The result showed that the average content of soil organic matter was 47.2g/kg,total nitrogen 2.36g,/kg,available phosphorous 23.18 g/kg,available potassium 163.Sg/kg.Prepared with the results of chemical test in 1982 and in 2002,soil organic, total nitrogen and available potassium decreased obviously,available phosphorous increased rapidly.