optimum irrigation index 灌水控制上限
water saving irrigation index 滴灌灌水指标
index of irrigation need 灌溉需水指数
Irrigation quality index 灌溉质量指标
irrigation technical index 灌水技术指标
irrigation requirement index 灌溉需求指数
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Experimental study was performed to determine the moderate water deficit effect and physiological irrigation index of tobacco with lysimeters by controlling the lower limit of soil water content.
为确定烟草的适度亏水效应及烟草水分生理灌溉指标，进行了烟草蒸渗仪试验，通过控制土壤水分下限研究烟草的适度亏水效应。
At first, through analyse the influence on the soil, crops, groundwater and function of water body of sewage, the index system of sewage irrigation security appraisal have been set up.
首先，通过污水对土壤、农作物、地下水以及水体功能的影响分析，建立了污水灌溉安全性评价的指标体系。
Border irrigation current advancement process model plays an important role to determine irrigation technical index, average field infiltration rate and roughness coefficient.
畦灌水流推进过程计算模型对确定灌水技术要素、田间平均入渗率和糙率有十分重要的作用。
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