The model was used to determine optimum irrigation amount for obtaining maximum net return.
以净效益最大为原则，用所提出的模型研究了不同灌水均匀系数时的最优灌水量。
Irrigation amount of corn is optimized under the existing irrigation conditions, and the water saving method of corn is suggested.
优化了灌区现有灌溉模式下玉米的灌溉量，建立了灌区玉米的节水灌溉模式。
With the same irrigation amount, the increasing of nitrate nitrogen content both in the soil and groundwater has the polynomial correlation with groundwater table.
灌水量相同时，土壤中硝态氮增加量和地下水中硝态氮的增量与地下水埋深成多项式关系。
The results indicated that the leaf thickness decreased obviously with the decline of irrigation amount while the number of palisade tissues of the unit length increased gradually.
结果表明：随着浇水量的减少，单位长度栅栏组织细胞数增多，番茄叶片厚度下降；
Whether the shallow layer of soil or the deep layer of soil, from 8:00 to 20:00, each treatment at different time, soil temperature were inverse ratio with water irrigation amount.
无论土壤浅层还是土壤深层，各不同处理在8：00 ~ 20：00之间各个时刻土壤温度的高低都与灌水量的多少成反比。
Actual evapotranspiration is a significant variable in the water balance calculation. It links daily rainfall, irrigation amount and soil bypass flow to calculate an immobile water deficit.
实际作物腾发量是水平衡模型计算的一个重要变量，它和每日降雨量，灌溉量及土壤径流量共同计算静止水的亏缺量。
The most important factor affecting the water supply amount is light intensity, the irrigation amount can be determined by the light intensity and the EC value of drain water from the substrate.
影响灌溉量的最主要因素是光辐射强度，即可根据光辐射强度和每天检测所获的回收液EC值来确定。
To make matters worse, some of the traditional Chinese irrigation methods have wasted an astonishing amount of water.
更糟糕的是，一些中国传统的灌溉方式浪费的水量令人惊讶。
The storage and the usable amount of soil water resource vary with the situations of meteorology, irrigation and crop growing.
土壤水储存量和土壤水可利用量随气象条件、灌溉以及作物状况不断变化；
The amount of water which is required for irrigation depends on a number of factors.
灌溉所需要用的水量由很多因素决定。
To amount of soil moisture consume, which was increased under different irrigation treatments, while decreased in a certain degree under covering membrane, covering grasses and pruning.
各灌水处理下的土壤耗水量均有一定程度增大，而覆膜、覆草和修剪下的土壤耗水量，则有一定程度的降低。
Based on a great amount of experimental research, the theoretical and empirical design methods of surge flow border irrigation technical parameters are presented.
根据大量试验研究成果，提出了波涌畦灌灌水技术要素设计的理论方法和经验方法。
The goal for a landscape irrigation plan is 100 percent survival rate of plants, using the minimum amount of water to do the job.
对于景观灌溉计划的目标是百分之百的植物成活率，利用水的最低金额为完成这项工作。
The coagulating water amount of sprinkler irrigation field was more than that of surface irrigation field at night.
喷灌小麦晚上出现凝结水的量大于地面灌农田。
The amount of evapotranspiration of surface irrigation field was a little larger than that of sprinkler irrigation field.
喷灌农田的作物蒸散量通常小于地面灌农田。
The next essential piece of information is the total amount of time that the irrigation system operated that night, also referred to as "total run time."
第二和重要的数据信息是每晚喷灌系统运行的总时间，称作总运行时间。
The low rate of sowing, wide space between rows, proper amount of nitrogen and phosphorous and a timely irrigation also had good effect on seed production of sainfoin.
低播量、宽行距、施适量的氮磷肥料、适时灌溉对红豆草种子生产亦有良好的效果。
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。
Within 10 years I expect that low-cost drip systems will irrigate several million hectares in India alone, an amount larger than the total worldwide area under drip irrigation today.
我预期在10年内，光是在印度，就有数百万公顷的土地是利用这种廉价滴水系统来灌溉的，比起现今全世界利用滴水灌溉的农地面积，还要大出许多。
And appropriate to reduce the irrigation frequency and amount has little affects on yield, and can increase water use efficiency.
且适当减少小麦灌溉次数和灌水量对产量影响并不大，并能提高水分利用效率。
The low rate of sowing, wide space between rows, proper amount of nitrogen and phosphorous and a timely irrigation also had good effect on seed pr...
低播量、宽行距、施适量的氮磷肥料、适时灌溉对红豆草种子生产亦有良好的效果。
The change tendency of leaf area index of flue-cured tobacco assumed to "S" under different water amount by bunching irrigation.
不同水分处理下烤烟叶面积指数均呈“S”型变化趋势。
The change tendency of leaf area index of flue-cured tobacco assumed to "S" under different water amount by bunching irrigation.
不同水分处理下烤烟叶面积指数均呈“S”型变化趋势。
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