Water efficiency of irrigation is a key criterion for evaluation of agricultural water saving effect.
灌溉水利用系数是衡量农业节水效果的关键指标。
Water – improving the efficiency of irrigation systems.
提高灌溉系统的效率。
The actual water requirements differ according to plant, climate (most of the water withdrawn by plants is for cooling through evaporation) and the efficiency of irrigation.
实际的需水量根据植物种类，气候(植物吸收的大部分水用于进行蒸发降温)，和灌溉效率的不同而有所不同。
Linking the efficiency of drip irrigation to the reliability of a solar-powered water pump, the PVDI systems need no batteries, gas, or kerosene.
这一系统将滴灌的高效性与太阳能水泵结合起来，它既不需要电池与汽油，也不需要煤油。
Growth dynamics, yield, fruit quality and water use efficiency of greenhouse cucumber were studied under the different soil irrigation maximums in different seasons during initial bloom stage.
对不同栽培季节、不同土壤灌溉上限处理的温室黄瓜初花期的生长发育动态、产量、品质及水分利用效率进行了研究。
But as the number of irrigation increased, the field waters consumption increased and the water use efficiency remarkably declined.
但随着灌水次数的增加，田间耗水量增加，水分利用效率明显下降。
The effects of irrigation frequency and soil matric potential on potato growth and water use efficiency(WUE) under drip irrigation in North China were studied.
研究了滴灌灌溉频率和土壤水势对马铃薯生长和水分利用效率的影响。
The order of water use efficiency and irrigation water use efficiency was both as follows: SM> ZM> SC.
水分利用效率和灌溉水利用效率均为稻草覆盖旱作>裸地旱作>常规水作。
Land leveling is an important measure for improving the efficiency of farm land surface irrigation and saving the resources of water.
平整土地是提高农田灌溉效率，节约水资源的一项重要措施。
Basing on the formulas of "the irrigation water loss efficiency", educe the corresponding formulas of "resources-type" real water saving of all kinds of saving-water irrigation project.
根据推导的“灌溉水损失系数”公式导出了各种节水灌溉工程措施节水量的计算方法即本文所说的真实节水量的计算方法。
Drip irrigation is the most water-saving irrigation technology with high efficiency. However, its expensive system cost seriously restricts extension and utilization of the technology.
滴灌是目前世界上最为节水的高效灌溉技术，但其昂贵的系统成本严重制约着该技术的推广应用。
The low efficiency of using water in modern city garden plant irrigation makes the situation of water-supply more serious.
现行城市园林植物灌溉，水的利用效率低，使本来就很紧张的城市供水更趋紧张。
The coupling effect of water and nitrogen on cotton yield and water use efficiency(WUE) was studied under different drip irrigation patterns.
研究施肥量和灌水量对不同滴灌模式棉花产量、水分利用效率（WUE）的水氮耦合效应影响。
The results indicated that root-divided alternative irrigation could increase root activities, photosynthesis rate and water use efficiency of tobacco leaf, but decrease transpiration rate;
结果表明，分根交替灌溉可增强烟株的根系活力，保持较高的光合速率，降低蒸腾速率，提高叶片瞬时水分利用效率；
The rice yield of the controlled irrigation is almost equal to that of the CK, but the controlled irrigation reduces the amount of irrigation and increase water use efficiency.
控制灌溉在高产的条件下能够大幅度地减少灌溉用水量，提高水分利用效率。
The waste-water irrigation has brought considerable benefits of water and fertilizer efficiency to agricultural production.
因此，污水灌溉给农业生产带来了可观的水、肥效益。
High salinity of irrigation water resulted in lower average water consumption intensity of wheat during the whole growing season, but higher water use efficiency.
灌水矿化度的增加降低了小麦在生育期的平均耗水强度，增加了小麦的水分利用效率。
The key problem needed to be solved in water saving agriculture is to increase the utilization efficiency of rainfall and irrigation.
提高自然降水和灌溉水利用效率是节水农业要解决的中心问题。
Comprehensive analysis and research on the theory and practice of water use efficiency in irrigation district is conducted by using static plane and dynamic space models.
用静态平面和动态空间两种模型对灌区水资源利用系数进行了理论和实践的综合分析研究。
Aimed at the objective of high-efficiency use of water resources, the optimal water resources allocation among different irrigation districts and different crops in Kaifeng city are studied.
以水资源高效利用为主要目标，对开封市内各地区之间水量优化分配进行了研究。
Compared with submerged irrigation, the growth of root, accumulation of above-ground dry matter, grain yield and water use efficiency were decreased significantly under dry cultivation.
旱种抑制水稻根系生长和地上部干物质积累，产量和水分利用率比淹水灌溉显著降低。
The food yield per unit water is an important index, which indicate the efficiency of the irrigation water use and status of food production.
单位水量粮食生产能力是综合反映灌溉用水水平和粮食生产状况的重要指标。
The results of comparison test of the water saving efficiency of drip irrigation afforestation in the waste mountain at Kuerle area show: drip irrigation saves water by 66.
对库尔勒地区荒山滴灌造林节水效率进行了对比试验，结果表明，滴灌较管道灌节水66。
In accordance with regional water volume balance theory, there are structural, management and technical measures to improve efficiency of irrigation water by analyzing how irrigation water losses.
根据区域水量平衡原理，从灌溉水的损失途径分析，提高灌溉水利用率有工程措施、管理措施和技术措施。
One of fundamental tasks of agricultural water conservation is to improve the efficiency and productivity of irrigation water.
农业节水的根本任务之一在于提高灌溉水利用率和生产效率。
This water will be purified by a simple mechanical filter and will be used for the irrigation of the landscape with a high efficiency drip irrigation system.
这些水将通过简单的机械过滤器净化并被用于景观的一种高效滴灌系统。
Water saving irrigation zoning is one of the main measures in studying the development and efficiency of agricultural water resources.
节水灌溉区划是研究农业水资源合理开发与高效利用的主要手段之一。
The results of comparison test of the water saving efficiency of drip irrigation afforestation in the waste mountain at Kuerle area show: drip irrigation saves water by 66.6% than pipe irrigation.
对库尔勒地区荒山滴灌造林节水效率进行了对比试验，结果表明，滴灌较管道灌节水66.6%。
The results of comparison test of the water saving efficiency of drip irrigation afforestation in the waste mountain at Kuerle area show: drip irrigation saves water by 66.6% than pipe irrigation.
对库尔勒地区荒山滴灌造林节水效率进行了对比试验，结果表明，滴灌较管道灌节水66.6%。
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