Belowground Interaction in Tea/Soybean Intercropping Enhances Tea Quality by Improving Soil Nutrient Dynamics
文献类型： 外文期刊
作者： Wang, Tianqi 1 ; Mu, Xiaoyu 1 ; Ni, Erdong 2 ; Wang, Qinwen 1 ; Li, Shuyue 1 ; Mao, Jingying 1 ; Qing, Dandan 2 ; Li, Bo 2 ; Chen, Yuan 3 ; Chen, Wenjie 4 ; Liang, Cuiyue 1 ; Wu, Hualing 2 ; Lu, Xing 1 ; Tian, Jiang 1 ;
作者机构： 1.South China Agr Univ, Coll Nat Resource & Environm, Root Biol Ctr, Guangdong Engn Technol Res Ctr Low Carbon Agr Gree, Guangzhou 510642, Peoples R China
2.Guangdong Acad Agr Sci, Tea Res Inst, Guangdong Key Lab Tea Plant Resources Innovat & Ut, Guangzhou 510640, Peoples R China
3.Guangxi Acad Agr Sci, Grape & Wine Res Inst, Nanning 530007, Peoples R China
4.Guangxi Acad Agr Sci, Cash Crops Res Inst, Nanning 530007, Peoples R China
关键词： tea/soybean intercropping; tea quality; soil fertility; soil enzyme activity; belowground interactions
期刊名称：PLANTS-BASEL （ 影响因子：4.1； 五年影响因子：4.5 ）
ISSN： 2223-7747
年卷期： 2025 年 14 卷 11 期
页码：
收录情况： SCI
摘要： Although tea (Camellia sinensis)/soybean (Glycine max) intercropping is widely applied in tea gardens, the underlying mechanisms driving tea quality promotion remain largely unclear. This study explores the effects of intercropping on tea quality, soil nutrient availability, and soybean growth and analyzes their mutual relationship. Field experiments revealed that intercropping increased tea leaf water extracts, polyphenols, and amino acids by 4.36-8.99%, 14.76-15.23%, and 14.73-16.36%, respectively, across two growth stages. Furthermore, intercropping boosted organic matter, available nitrogen (N), phosphorus (P), and potassium (K) in the tea rhizosphere. Enzyme activities, including acid phosphatase, alkaline phosphatase, urease, and beta-glucosidase, were also elevated in tea/soybean intercropping. In soybean, shoot and root biomass, weight and number of nodules, and N, P, and K content increased over cultivation time. Correlation analysis showed that tea water extracts and polyphenols were positively linked to soil available P and alkaline phosphatase activities. Soybean root and nodule growth were correlated with soil N and P activation and tea water extracts, indicating that soybean-mediated underground interactions drive mineral nutrient mobilization in rhizosphere, further improving tea quality. This study provides mechanistic insights into tea/soybean intercropping, offering practical implications for sustainable tea cultivation practices.
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