中国农业科学2008,4172040-2047.docVIP

茶树与大豆间作效应 黎健龙12，涂攀峰1，陈娜1，唐劲驰2，王秀荣1，年海1，廖红1，严小龙1 （1华南农业大学根系生物学研究中心，广州51064；2广东省农业科学院茶叶研究所，广州510640）ffects of Tea Intercropping with Soybean LI Jian-long1, 2, TU Pan-feng1, CHEN Na1, TANG Jin-chi2, WANG Xiu-rong1, NIAN Hai1, LIAO Hong1, YAN Xiao-long1 (1Root Biology Center, South China Agricultural University, Guangzhou 510640; 2Tea Research Institute, Guangdong Academy of Agricultural Science, Guangzhou 510640) Abstract: 【Objective】The aim of this study was to investigate the effects of soil, tea plant growth and of pest and disease in a young tea and soybean intercropping system. 【Method】Field experiments were conducted on an acid soil the Tea Research Institute of Guangdong Academy of Agricultural Sciences located in Yingde County in both spring and summer seasons. Two soybean varieties and two tea varieties were used to investigate the effects of tea-soybean intercropping on soil characteristics and nutrient status including pH value, N, P, K, Ca and Mg contents. The effects on tea plant growth indices such as plant height, width, and 100 bud weight, weed control, and management of pest and disease in the intercropping system were also investigated. 【Result】Young tea and soybean intercropping with return of soybean straw could significantly improve soil and nutrient status of the tea plantation by decreasing exchangeable Al content, increasing pH value and enhancing organic matter, available N and total N contents. Intercropping significantly facilitated tea tree growth as indicated by increased vigor of young leaves and enhanced tree crown necessary for a high-yield tea production. Intercropping also significantly improved the micro-ecology of the tea plantation by reducing weed growth, pest and disease occurrence, and therefore increased tea yield and economic benefits of the tea plantation. 【Conclusion】Intercropping tea tree with appropriate soybean varieties is an effective cultivation method with great ecological and economic bene