茶叶需水量与灌溉制度研究

Analysis of Water Requirement and Irrigation System of Tea

作物需水量是作物进行科学灌溉以及制定作物灌溉制度的主要依据,通过试验,研究了茶叶需水量和需水规律,分析了茶叶灌溉制度,多年生的茶叶需水总量平均为1274. 60 mm,年平均日需水量为3. 49 mm,茶叶的灌水计划湿润层深度定在50 cm比较合适,年生长期各月的平均日耗水强度从1. 07～6. 51 mm/d不等,灌溉定额为307. 2 mm。

Crop water requirement is the main basis for scientific irrigation and establishment of crop irrigation system. Based on the experiment,this paper studies the water requirement and the law of water requirement of tea,analyses the irrigation system of tea. The average water requirement of perennial tea is 1274.60mm, and the annual average daily water demand is 3.49mm. It s better to set the depth of the wet layer of the tea irrigation scheme at 50 cm. The average daily water consumption ranged from 1.07mm/d to 6.51mm/d per month during the growth period. The irrigation quota is 307.2mm.