名优茶园节水技术研究

名优茶园微喷灌和滴灌节水技术试验结果表明:名优茶园采用微喷灌、滴灌等灌溉方法,均能快速及显著提高茶树根系周围的土壤含水量,促进茶树芽叶生长,增加茶叶产量,增产率达24.36%～32.06%;在灌溉过程中,土壤水分散失少,灌溉水利用率高,比传统方式可节水30%以上.试验结果还表明,名优茶园采用滴灌的综合效果比微喷灌好,灌溉水利用率是微喷灌的1.5倍以上,其中以滴灌持续时间为4 h的节水效果最佳,比滴灌6 h节水50%,比微喷灌4、6、8 h分别节水30%、95%和160%.

Research on water-saving technology of micro sprinkle and drip irrigation in famous and superior tea garden

In order to solve the shortage of irrigation water in tea garden of mountains,two water-saving tehnology of micro sprinkle and drip irrigation were developed.The results showed that in drought season,they could increase water contents rapidly in the soil rearby the roots of tea plants.More over,compared with traditional irrigation modes,these two techniques could save over 30% water and the tea yields per 667 m2 increased 24.36%~32.06%.Drip irrigation was more efficient than micro sprinkle,its water utilization ratio was over 1.5 times of micro sprinkle.Drip irrigation for 4 hours was the best;it could save 50% water than drip imgation for 6 hours,and save 30%,95% and 160% water than that of micro sprinkle for 4,6 and 8 hours,respectively.