The irrigating water quota , number of irrigation and frequency of irrigation , which is sure to provide the water in time to the forage grass field and get highly stable yield .
为保证饲草料地土壤水分的适时供给并获得稳产高产所确定的灌溉定额，灌水次数和灌水时间。
Irrigation frequency also changed the spatial distribution and storage of soil water.
灌水频率可改变土壤水分的空间分布和土壤蓄水量。
Rainfall frequency analysis is used commonly to determine probability of irrigation water requirement, and to choose typical years for irrigation project design.
灌区灌溉设计中，常用降雨量进行频率分析来选取灌溉设计保证率及其对应典型年。
The function of drip irrigation frequency, drip irrigation quota and crop yields, irrigation water productivity is established through the experiment values and data analysis.
通过试验及分析建立了春小麦滴灌次数、滴灌定额与作物产量及灌溉水分生产率的函数关系。
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 probability of reduced irrigation frequency after the spring and all fertilizer as base fertilizer was discussed in this paper.
文中讨论了减少冬小麦春后的灌溉次数和全部肥料作为底肥施用的可能性。
Take orthogonal experiment to study the yields and growth of corn under the condition of different irrigation frequency, different irrigation water quota, different N/P and irrigation on film.
为了确定影响膜上灌玉米生长发育的主要因素，采用正交试验研究单种玉米小畦膜上灌条件下，不同灌水定额、灌水次数和氮磷配比对玉米生长发育和产量的影响。
The efficiency of a parallel connection double-pump irrigation System is not only related to the break - down and recovery frequency but also to the operation and maintenance fashion of the System.
双泵并联灌溉系统的有效度不仅与机组故障率和修复率有关，而且与系统的运行方式及维修方式有关。
In conclusion, there were some differences in the results of soil surface evaporation, when the leaf area index was large. A further study was needed under high-frequency irrigation.
分析认为，当叶面积指数较大时，棵间蒸发的现有研究结果尚存在较大的差别，而且高频灌溉条件下的土面蒸发有待于进一步研究。
Chencun Hydropower Station plays an important role in peaking and frequency modulation in power grid. Meanwhile, the reservoir also has the functions of flood prevention and irrigation.
陈村水电站在电网的调峰、调频中起着重要的作用，同时水库也面临着防洪、灌溉等任务。
Chencun Hydropower Station plays an important role in peaking and frequency modulation in power grid. Meanwhile, the reservoir also has the functions of flood prevention and irrigation.
陈村水电站在电网的调峰、调频中起着重要的作用，同时水库也面临着防洪、灌溉等任务。
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