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Seasonal variations in the contents of nutrient elements in the leaves and the fruits of Eriobotry japonica L

文献类型: 外文期刊

作者: Ding, CK 1 ; Chen, QF 1 ; Sun, TL 1 ;

作者机构: 1.Zhejiang Acad Agr Sci, Inst Hort, Hangzhou 310021, Peoples R China

关键词: loquat;Eriobotry japonica L.;macro elements;micro elements;seasonal variation;leaves;fruits

期刊名称:HYDROPONICS AND TRANSPLANT PRODUCTION

ISSN: 0567-7572

年卷期: 1995 年 396 期

页码:

收录情况: SCI

摘要: Seasonal variations of N,P,K,Ca,Mg,Mn,Fe,Zn and B contents in the leaves and fruits of loquat were studied from 1991 to 1993. Results showed that the contents of N, P and K in the leaves declined with increasing leaf age, while the contents of Ca, Mg and Mn increased gradually, and the contents of Fe,Zn and B were relatively low and varied enormously; that the contents: of the above nutrient elements were higher during the retardation phase of young fruits, but they quickly decreased with bullring of the fruits. The optimal sampling period for leaf analysis is considered to be October because the contents of most ofthe elements in the leaf were relatively stable in this season.

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