临汾市龙子祠泉冬小麦非充分灌溉模式初探

Preliminary Study on Insufficient Irrigation of Winter Wheat in Longzici Irrigation District of Linfen city

在了解龙子祠泉灌区冬小麦需水特性的基础上,结合当地的降水、地下水补给的特点,进行了冬小麦非充分灌溉的灌水指标及优化运行模式试验,经过2000—2003三年的田间试验的结果表明,该模式与当地的充分灌溉相比,在单产接近的条件下,节省了灌溉水量,提高了灌水生产率,使水资源得以充分利用。

On the basis of grasping water requirement characteristic of winter wheat of Longzici Irrigation District, combining with the feature of water supply by precipitation and groundwater in situ, the tests on water use indexes and optimal operation modes of winter wheat＇ s insufficient irrigation lasted three years from 2000 to 2003. The test results indicate that comparing with sufficient irrigation, the insufficient irrigation mode can save irrigation water use under the condition of obtaining close yields, and can raise irrigation productivity, and so that the water resources can be used full.