Effects on the raising of bone density by calcium complex l-amino acid chelate compound in wean .
复合l-氨基酸螯合钙对大鼠骨密度增加的影响。
Chelate fertilizer application could markedly enhance the nutritive quality of green chinese onion than that of conventional fertilizer , it not only increased vitamin c content but also deceased nitrate content in welsh-onion stalk .