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Effects of EGCG on the Mobilization of Mineral Elements from Tea Plantation Soil

文献类型： 外文期刊

作者： Huang, Danjuan 1 ; Gong, Ziming 1 ; Wang, Youping 2 ; Chen, Xun 1 ; Tan, Rongrong 1 ; Wang, Hongjuan 1 ; Mao, Yingxin 1 ;

作者机构： 1.Hubei Acad Agr Sci, Inst Fruit & Tea, Tea Breeding & Cultivat Lab, Wuhan, Peoples R China

2.Hubei Acad Agr Sci, Inst Plant Protect & Soil Fertilizer, Dept Sci & Technol Management, Wuhan, Peoples R China

关键词： EGCG; mobilization; mineral elements; soil nutrients; tea plantation

期刊名称：COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS （ 影响因子：0.767； 五年影响因子：0.887 ）

ISSN： 0010-3624

年卷期：

页码：

收录情况： SCI

摘要： Tea polyphenols (TPs) may reach the soil through root secretions and the decomposition of fallen leaves in the tea garden ecosystem and may activate elements existing in the soil through complexation. We designed different epigallocatechin gallate (EGCG) concentration, residence time, and extraction reagent to determine the effect of these treatments on the mobilization of potassium (K), calcium (Ca), magnesium (Mg), iron (Fe), and manganese (Mn). The results showed that the EGCG concentration had a significant impact on the mobilization of these five elements. According to the correlation coefficient of desorptive kinetic equations, K, Ca, Mg, Fe, and Mn desorption onto soil was well described by first-order kinetic equation model (R-2 > 0.98, P < .01). The effect of LMWOAs (low molecular weight organic acids) was greater than that of EGCG on mobilizing amounts of large elements including K, Ca, and Mg. Our study provides a more detailed understanding of the interactions between EGCG and minerals, which may offer prospects for improving plant nutrient acquisition through direct modifications of rhizosphere management.

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