唐山市耕地土壤养分变化及改善途径

Tangshan farming soil nutrient change and improvement way

论述了唐山市土壤肥力自1982年全国第二次土壤普查以来的变化状况,分析了土壤养分含量变化的原因,提出了改善途径。

This article elaborated the Tangshan soil feaility since 1994 the soil topsoil investigation change condition, has analyzed the soil nutrient content change reason, proposed the improvement way.