摘要
分析萧县土壤养分的现状及变化趋势,结果表明,与1982年第2次土壤普查结果相比,萧县土壤有机质含量显著增加,平均增加7.3 g/kg;土壤pH平均下降了0.2,土壤碱度得到改善;全氮含量显著增加,平均增加0.27 g/kg;速效磷含量极显著增加,平均增加14.6 mg/kg;速效钾含量平均增加了15.4 mg/kg。
The soil nutrient status and changing trend of Xiao County were studied.The results showed that,compared with the second soil census results in 1982,organic matter content of the soil increased significantly,the average increased by 7.3 g/kg.Soil pH average dropped 0.2,soil alkalinity improved.Total nitrogen content increased significantly,the average increased by 0.27 g/kg.Available phosphorus content increased significantly,the average increased by 14.6 mg/kg.The content of available kalium grew by an average of 15.4 mg/kg.
出处
《宁夏农林科技》
2012年第10期119-120,共2页
Journal of Ningxia Agriculture and Forestry Science and Technology
关键词
土壤养分
现状
变化趋势
Soil nutrient
Status
Changing trend
