西北干旱区膜上灌对玉米作物的高效节水机理研究

打开文本图片集

摘  要：为探讨膜上灌对玉米水分利用效率的影响，在甘肃省景泰灌区进行田间对比试验。通过田间试验对比玉米膜上灌与传统畦灌玉米的叶面积指数、株高、叶面积、干物质积累等相关指标；进一步分析膜上灌增产与地温、灌水等相关指标的响应机制，为开展与膜上灌与其他农艺节水措施相结合灌水方法提供技术支撑。

关键词：玉米性状；水分利用率；膜上灌技术；节水机理；田间对比试验

中图分类号：S275      文献标志码：A          文章编号：2095-2945（2023）04-0059-04

Abstract： In order to explore the effect of plastic film irrigation on water use efficiency of corn， a field comparative experiment was conducted in Jingtai Irrigation District of Gansu Province. Through the field experiment， the leaf area index， plant height， leaf area and dry matter accumulation of corn under plastic film irrigation and traditional border irrigation were compared， and the response mechanism of yield increase and soil temperature， irrigation and other related indexes was further analyzed， so as to provide technical support for irrigation combined with plastic film irrigation and other agronomic water-saving measures.

Keywords： corn characters; water use efficiency; plastic film irrigation technology; water saving mechanism; field comparative experiment

近年来，随着农业生产规模不断扩大，气候急剧变化，干旱缺水已然成为西北农业持续发展的绊脚石，膜上灌技术能有效地解决干旱缺水带来的农业生产问题。（剩余5701字）