摘要
枣树叶片中矿物质元素年变化的动态是:生长初期N、P、K、Fe、Zn和Mg迅速下降,Ca和Mn逐渐上升;生长中期这8种元素变化幅度较小;生长后期N、P、K、Fe、Zn和Mg又下降,而Ca、Mn依然上升。
The yearly change of mineral element in jujube leaves is that., levels of N, P, K, Fe, Zn and Mg rapidly decrease during early growth stage, but Ca and Mg gradully increase; Whereas during middle growth stage, these eight elements show stable levels; During last growth stage, N, P, K, Fe, Zn elements content again decline and Ca, Mg element raise.
出处
《山西林业科技》
2007年第4期27-30,共4页
Shanxi Forestry Science and Technology
基金
山西省科技攻关项目(051042-2)
关键词
枣树叶片
营养元素
动态规律
nutrient element
Ziziphus jujuba leaf
dynamic rule
