Based on the data collected in this study, net irrigation water requirement of main crop in china has been gotten.
根据收集到的资料，计算得出全国主要作物的净灌溉需水量。
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 water requirement and growth in paddy rice were studied under four different irrigation methods and different evaporation and seepage with pot culture.
利用桶栽试验，研究了在不同灌溉方式及不同蒸发渗漏处理下的水稻需水量和对水稻生长的影响。
The unit transformation satisfies not only the requirement of the current industrial water supply, but also the requirement of the randomness of small flow for the farm irrigation.
通过机组改造，不仅满足了近期工业供水的要求，同时也满足了农业灌溉小流量随机性要求。
The practice has proved that the scientific irrigation based on rice water requirement rule can save water and increase yield and gain significant social and economic benefits as well.
实践证明，根据水稻需水的规律进行科学灌溉，不仅可以大量节水，而且还能增产，社会效益和经济效益都十分显著。
When the spray irrigation system with reasonable design meets the requirement of water need, it could also meet the effect of landscape and environment.
设计合理的喷灌系统在满足需水要求的同时，可以满足景观和环境效果。
Because of the same reason, the precision irrigation technology based on plant water requirement as the development trend of water-saving irrigating technology is limited.
同样地，作为节水灌溉技术未来发展趋势的按植物需求精准灌溉控制技术，其理论的完善和技术实现也受制于此。
Crop water requirement is not only an important factor for water resource management, but also a major reference for the irrigation planning.
作物需水量的掌握不但是水资源规划利用的重要因子，更是拟定灌溉计划的依据。
Crop water requirement is not only an important factor for water resource management, but also a major reference for the irrigation planning.
作物需水量的掌握不但是水资源规划利用的重要因子，更是拟定灌溉计划的依据。
应用推荐