摘要
地膜覆盖具有增温和保墒的作用 ,是旱作农业的一项重要技术。在渠灌区应用地膜覆盖技术后 ,试验表明 ,地膜覆盖灌水技术不但能够提高区域内土壤温度 ,而且 ,具有节水、灌水均匀度高和增产等特点 ,研究得出 ,田间土壤水分利用率呈现出冬灌露地小麦 <无冬灌露地小麦 <旱地小麦 <覆盖小麦。
The plastic mulching irrigation is an important technique in dryland farming,which can increase temperature and conserve soil moisture.The test demonstrated that the plastic mulching irrigation not only can promot regional soil temperature,but also can save water and raise the uniformity of irrigation water application. The result shows that the using rate of soil water is as follows. The wheat of winter irrigation without plastic mulching<the wheat without winter irrigation and plastic mulching<the wheat in dryland<the wheat with plastic mulching.
出处
《水土保持研究》
CSCD
2002年第2期45-47,共3页
Research of Soil and Water Conservation
基金
国家重大科技产业化示范项目"渠灌类型区高效节水产业化示范项目"( 99-0 2 1-0 1-0 2 )
关键词
地膜覆盖灌水技术
节水
水分生产函数
plastic mulching irrigation
saving water
the using rate of soil water
