摘要
为了推进秸秆复合管地下灌溉技术的应用,以冬小麦为供试作物,通过田间试验,研究了秸秆复合管地下灌溉对冬小麦生长及水分利用效率的影响。结果表明,与无灌溉对照相比,秸秆复合管地下灌溉、地表滴灌和地下滴灌对冬小麦的生长与产量的提升均有促进作用,其中秸秆复合管地下灌溉的提升效果最显著。与地表滴灌相比,秸秆复合管地下灌溉显著提升了冬小麦起身期至抽穗期的株高、开花期之后的叶面积指数及地上干物质量,冬小麦穗长和穗粒数分别增加了5.84%和9.23%,产量提升了15.55%,水分利用效率与灌溉水利用效率分别提高了21.88%与15.55%,净收益提高了77.95%。与地下滴灌相比,秸秆复合管地下灌溉提高了冬小麦返青期后的株高、叶面积指数与开花期后的地上干物质量,冬小麦穗长和穗粒数分别增加了5.15%和9.8%,产量提高了5.11%,水分利用效率与灌溉水利用效率分别提高了8.81%与5.11%,净收益提升了23.53%。秸秆复合管地下灌溉有助于促进拔节期以后冬小麦生长,提高冬小麦的产量与水分利用效率,经济效益较高,在补充灌溉区对大田密植作物具有较好的推广应用前景。
In order to promote the application of Straw-based composite pipe Subsurface Irrigation(SSI)technology,a field experiment was conducted to investigate the impact of SSI on the growth and water use efficiency of winter wheat.The experiment involved a comparison of surface drip irrigation(DI),subsurface drip irrigation(SDI)and no irrigation(CK).The results showed that compared with the CK,SSI,DI,and SDI all have promoting effect on the growth and yield of winter wheat,and the improvement effect of SSI is the most significant.Compared with DI,SSI significantly improved the plant height,leaf area index,and dry matter yield of winter wheat from the starting stage to the heading stage;The ear length and grain number per spike increased by 5.84%and 9.23%,respectively.The yield increased by 15.55%.The water use efficiency and irrigation water use efficiency increased by 21.88%and 15.55%,respectively.The net income increased by 73.79%.Compared with SDI,SSI improved the plant height,leaf area index,and dry matter yield of winter wheat after the turning green period;The ear length and grain number per spike significantly increased by 5.15%and 9.8%,respectively.The yield increased by 5.11%.The water use efficiency and irrigation water use efficiency increased by 8.81%and 5.11%,respectively.The net income increased by 31.38%.In summary,Strawbased Composite Pipe Subsurface Irrigation(SSI)demonstrates the capability to enhance the growth of winter wheat after the jointing stage,improve its yield and water use efficiency,thereby yielding higher economic benefits.SSI has good prospect in supplementary irrigation areas for densely planted crops.
作者
仵峰
刘林宝
宰松梅
魏焕宇
李欣
刘丹婷
WU Feng;LIU Lin-bao;ZAI Song-mei;WEI Huan-yu;LI Xin;LIU Dan-ting(School of Water Resources,North China University of Water Resources and Electric Power,Zhengzhou 450046,China;School of Water Conservancy,North China University of Water Resources and Electric Power,Zhengzhou 450046,China;Henan Key Laboratory of Water-Saving Agriculture,Zhengzhou 450046,China)
出处
《节水灌溉》
北大核心
2024年第3期50-55,67,共7页
Water Saving Irrigation
基金
国家自然科学基金资助项目(51979108)。
关键词
秸秆复合管
地下灌溉
灌溉方式
冬小麦
生长指标
水分利用效率
straw composite pipe
subsurface irrigation
irrigation method
winter wheat
growth indicator
water use efficiency
