茶柿间作系统中茶树根际微环境的研究

以湖北省贺胜桥茶场的茶柿间作系统和纯茶园系统为研究对象,对两种系统中茶树根系分泌物中的氨基酸、酚、可溶性糖及有机酸进行了分析,同时测定了根际土壤pH和养分含量.结果表明:与纯茶园系统相比,间作系统中茶树根系分泌的氨基酸量增加了2倍,酚下降了45.45%,酚氨浓度比下降了81.82%,改善了茶叶品质;根系分泌有机酸的能力减弱,防止了土壤的进一步酸化;同时土壤的理化性质得到了改善,更适宜于茶树的生长,因此,茶柿间作系统从根际微环境这个角度来看也是一个理想的复合生态模式.

Studies on Rhizosphere Environment of Camelllia sinensis Kuntze Ecosystem Intercropped by Diospyros kaki

The root exudates and rhizosphere nutrients of the pure Camelllia sinensis Kuntze ecosystem and the Camelllia sinensis Kuntze ecosystem intercropped by Diospyros kaki were discussed. The results showed that intercropping improves the tea quality by increasing the amount of amino acids, and decreasing the amount of phenolics, sugars, organic acids, and phenolic/amino acid. And also the results showed that rhizosphere nutrients contents increased in the intercropping ecosystem, the soil quality is bettered in intercropped ecosystem.