Zhao Yuxin, Zhou Junyi, Chen Lingli, Li Song, Yin Yue, Jeyaraj Anburaj, Liu Shujing, Zhuang Jing, Wang Yuhua, Chen Xuan, Li Xinghui
College of Horticulture, Nanjing Agricultural University, Nanjing 210095, PR China.
Nanjing Agro-Tech Extension and Service Center, Nanjing 210029, PR China.
J Agric Food Chem. 2025 Jun 4;73(22):13818-13831. doi: 10.1021/acs.jafc.5c03692. Epub 2025 May 22.
Intercropping is a sustainable agricultural practice that promotes the growth of tea plants. However, research on the effects of intercropping with aromatic plants on the soil environment and tea aroma quality remains limited. In this study, we conducted both greenhouse and field experiments to investigate the allelopathic effect of on soil properties, the soil microbial community, and tea aroma quality. The treatment with leaf litter or intercropping significantly increased soil pH and ammonium nitrogen content and changed soil enzyme activities. Both treatments enhanced the bacterial richness in rhizosphere soil and altered microbial communities, particularly increasing the relative and absolute abundance of beneficial . The allelopathic effect of improved tea aroma quality, with five key volatile compounds (linalool oxide II, linalool, nonanal, methyl salicylate, and geraniol) consistently identified in both greenhouse and field treatments. Network analysis demonstrated that our treatments enhanced the correlation between soil bacterial communities and five volatile compounds in tea leaves. These findings provide a theoretical foundation for improving soil health and tea aroma in tea plantations.
间作是一种促进茶树生长的可持续农业实践。然而，关于与芳香植物间作对土壤环境和茶叶香气品质影响的研究仍然有限。在本研究中，我们进行了温室和田间试验，以研究[植物名称]对土壤性质、土壤微生物群落和茶叶香气品质的化感作用。用[植物名称]落叶处理或间作显著提高了土壤pH值和铵态氮含量，并改变了土壤酶活性。两种处理均提高了根际土壤细菌丰富度，改变了微生物群落，特别是增加了有益菌的相对和绝对丰度。[植物名称]的化感作用改善了茶叶香气品质，在温室和田间处理中均一致鉴定出五种关键挥发性化合物（氧化芳樟醇II、芳樟醇、壬醛、水杨酸甲酯和香叶醇）。网络分析表明，我们的处理增强了土壤细菌群落与茶叶中五种挥发性化合物之间的相关性。这些发现为改善茶园土壤健康和茶叶香气提供了理论基础。
