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zhi wu ying yang zhong xin de bi xu yuan su -- na nie gui
Author(s): 
Pages: 42-45
Year: Issue:  3
Journal: JOURNAL OF HIGHER CORRESPONDENCE EDUCATION(NATURAL SCIENCES)

Keyword:  必需元素;
Abstract: 本文阐述了植物营养元素中新增的三个必需元素--钠、镍、硅必需性的确立,存在、吸收和运输方式及其生理效应.
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