State Key Laboratory of Soil and Sustainable Agriculture;
Institute of Soil Science;
Chinese Academy of Sciences;
Nanjing;
China;
University of the Chinese Academy of Sciences;
Beijing;
China;
Institute of Tobacco Science;
Anhui Agricultural Academy of Sciences;
Hefei;
China;
Wannan Tobacco Co. Ltd.;
Xuancheng;
China;
Microelement; Available; Content; Topsoil; of; Farmland; Xuancheng; City;