不同间作物对茶树新梢营养元素的影响

摘要

[Objective]Effects of different intercrops on nutrient elements content in new shoots of tea tree was studied to provide references for improving the quality of tea leaves. [Method]Nutrient elements content in one-bud and two-leaf shoots of tea tree were determined based on different intercropping patterns on three different plants (wild pepper-tea,agilawood-tea,camphor tree-tea),using one-bud and two-leaf shoots under mono-cropping as control. [Result]Com-pared with control,the contents of N,P,K,Ca,Mg,S,Cu,Zn,Fe,Mn,Mo and other elements in new shoots under three different intercropping patterns had certain change with varied change tendency; the contents of K,Ca,Mg and Fe increased in the three intercropping patterns,while the contents of P and Mn dwindled. [Conclusion]The three intercropping patterns could boost the absorption of nutrients in tea shoots and improve the quality of tea leaves.%[目的]研究不同林茶间作模式下间作物对茶树新梢营养元素的影响,为茶叶品质的改善和提高提供参考依据.[方法]以单作茶园的一芽二叶茶叶新梢蒸青样为对照,不同间作茶园的一芽二叶茶叶新梢蒸青样为材料,对其营养元素含量进行测定.[结果]3种林茶间作模式中的茶叶新梢N、P、K、Ca、Mg、S、Cu、Zn、Fe、Mn、Mo等元素含量与单作茶园相比均有一定的变化,但变化趋势和大小不一致.在3种林茶间作模式中茶叶新梢均增加的元素是K、Ca、Mg、Fe,减少的元素是P、Mn.[结论]3种间作模式增强了茶树新梢对营养元素的吸收,提高了茶叶品质.