摘要
膜下滴灌作为一种高效节水灌溉技术 ,近年来在南疆的小区试验、大田的推广中具有较高的节水、增产效果 ,发展前景极为广阔。根据实测及调查资料对膜下滴灌的节水、增产机理和效益进行了分析。结果表明 :与常规灌溉对比 ,节水 3 5 %～ 63 % ,平均增产籽棉 12 0 0～ 15 0 0kg hm2 ,增产 18.5 %～ 44 .0 %。水产比由常规灌的 0 .5 0～ 0 .75提高到0 .88～ 1.64。
Drip irrigation is a kind of water saving irrigation technique with high efficiency, and its application in the experiment site and field of southern Xinjiang acquires good effect of water saving and production increase. Thus, its development has good prospects. The mechanisms of water_saving, production_increase and the benefit of under_mulch drip irrigation are analyzed according to experiment and investigation. The results show that under_mulch drip irrigation can save water 35% ～63%, increase production of seed cotton to 80 ～ 100 kg, by 18.5%～44.0%, increase water productivity from 0.50 ～0.75 to 0.88 ～ 1.64 compared with conventional irrigation.
出处
《中国农村水利水电》
北大核心
2002年第10期9-12,共4页
China Rural Water and Hydropower
关键词
棉花
膜下滴灌
节水灌溉
灌溉效益
under_mulch drip irrigation water saving irrigation irrigation benefit
