CAJ | 학술논문

应用本项目组研制的茶园节水灌溉控制系统的"定时灌溉"模式,控制铁观音茶树微喷灌的间隔时间分别为5(T_1处理)、10 d(T_2处理),以无灌溉为对照.结果表明:T_1处理下铁观音茶树的叶片水势保持在-1.70--1.90 Mpa,而T_2处理和CK下,不同时期茶树叶片水势的变化幅度较大;与CK相比,T_1和T_2处理的单叶千重分别提高32.0%和29.1%;T_2处理的茶多酚含量最高,T_1处理的游离氨基酸含量最高,CK的咖啡碱含量最高.可见,运用茶园节水灌溉控制系统可以有效提高铁观音茶叶的产量和品质.
응용본항목조연제적다완절수관개공제계통적"정시관개"모식,공제철관음다수미분관적간격시간분별위5(T_1처리)、10 d(T_2처리),이무관개위대조.결과표명:T_1처리하철관음다수적협편수세보지재-1.70--1.90 Mpa,이T_2처리화CK하,불동시기다수협편수세적변화폭도교대;여CK상비,T_1화T_2처리적단협천중분별제고32.0%화29.1%;T_2처리적다다분함량최고,T_1처리적유리안기산함량최고,CK적가배감함량최고.가견,운용다완절수관개공제계통가이유효제고철관음다협적산량화품질.
Tea is an important beverage cropin Fujian.Itis often grown under rain-fedconditiom,where seasonaldroughtis one of the major constraints for tea production.In order to improve the water-use efficiency,a tea-irrigation control system was constructed and applied in the water management in tea garden.Two-year old tea plants at an Anxi tea plantation were subjected to three differ- ent irrigation controlling treatments,5(T_1)and 10 d(T_2)intervals with a rate of3.5 kg water per tree,plus a non-irrigated check (CK).The resudt showed that leaf water potential was maintained between-1.70 and-1.90 MPa for water treatment T_1.Howev-er,the halwater potential of tea plants under T_2 and CK changed toughly in the experimental period.Compared to CK,leaf dry weight increased 32.0%and 29.1% for T_1 and T_2,respectively.The polyphenoh content was highest at T_2 treatment,free amino acid content highest at T_1 treatment,hut the caffeine reached its highest at CK.In conclusion,the quality and leaf biomass of Tieguanyin tea plants could be smootMy improved by using the tea-irrieation control system.