许多人试图通过减少灌溉频率或改种需水量更少的作物来节约用水。
Many have been attempting to conserve water by irrigating less frequently or by switching to crops that require less water.
分析了现有作物需水量测定方法与计算方法在我国应用于灌溉预报时的局限性。
The present measuring and computing methods of crop water requirements have some limitations when they applied to irrigation prediction in China.
针对丘陵地区经济作物节水关键技术及设备研制课题需要解决需水信息采集和作物的灌溉模型的问题。
According to hilly areas of economic crops for water-saving technologies and equipment Research, which need to get water demanding information and crop irrigation model.
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。
Based on the data collected in this study, net irrigation water requirement of main crop in china has been gotten.
作物需水量估算是实施农业灌溉管理的重要环节之一。
To estimate crop water requirements is one important part of agricultural irrigation management.
要进行科学、高效的灌溉管理，必须准确地计算和预测作物需水量。
In order to carry through scientific and efficient irrigation management, crop water requirements must be calculated and forecasted accurately.
将优选出的模型应用于疏勒河灌区的作物需水量预测，为灌区作物灌溉提供指导。
The optimized model is applied to predict the crop water requirements of Shulehe irrigation area to provide guidance for crop irrigation in the irrigation area.
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.
分析了现有作物需水量测定方法与计算方法在我国应用于灌溉预报时的局限性。
Research advance for the real-time irrigation technology based on the crop water requirements;
分析了现有作物需水量测定方法与计算方法在我国应用于灌溉预报时的局限性。
Research advance for the real-time irrigation technology based on the crop water requirements;
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