nutritive elements 第1页

Study on moss: the content of amino acid, the feature of nutritive elements and its resistance to draught in the biotic crusts in arid and semi-arid regions Nutr itive Elements Ana lysis and Eva lua tion ofMaca( L epidium m eyen ii) Cultiva ted in Yunnan Characteristics of element contents and their influence factors in Codonopsis tangshen Contents and Storages of Mineral Nutritive Elements in Plantations of Pinus koraiensis