西北地区节水农业发展的关键技术

为推动西北地区节水农业的发展，极大地提高有限水土资源的利用效率，西北地区探索出多种节水农业发展模式等五大技术体系。通过20年的努力，在工程节水和农艺、管理节水的技术储备已初步具备，但节水效果还不理想。目前的主要任务是进行节水技术的优化集成，实现低成本空间扩散。今后发展节水农业的关键是应用现代高新技术和信息技术，结合管理和工程节水技术，提高作物自身的水分转化率等。

Key Technologies of Agricultural Water-saving Development in Northwest China

For the purpose of promoting agricultural water-saving development in northwest China and greatly improve efficiency of utilization of limited soil and water resources, five technical systems for various agricultural water-saving development modes are developed in the area. Water-saving technologies of engineering, agricultural and managerial has been accumulated through 20 years of efforts, but the result of water-saving is far from ideal. It is recommended that the main tasks presently are to optimize integration of water-saving technologies and realize an expansion on a low-cost base. The later development of water-saving technologies should focus on application of modern, new and high-tech and information technology, to increase moisture transformation rate of crops themselves by combining application of both managerial and engineering water-saving approaches.