机译:长沙郊区不同种植年限菜地土壤磷素状况及磷素淋失风险
Key Laboratory of Agro-Ecological Processes in Subtropical Region Institute of Subtropical Agriculture Chinese Academy of Sciences Changsha 410125 P.R.China;
Institute of Soil and Fertilizer Hunan Academy of Agricultural Sciences Changsha 410125 P.R.China;