摘要
为探讨不同灌溉方式对夏玉米生长及水分利用效率的影响,以夏玉米为研究对象,设定传统连续灌溉(T)、管渠灌溉(P)、波涌流灌溉(S)和固定隔畦波涌灌溉(G)4种灌溉方式,对比分析4种不同灌溉方式下对夏玉米的叶面积指数、株高、地上部干物质积累量、产量及水分利用效率的影响。结果显示:①夏玉米生育期内4种不同灌溉方式下株高相差不显著,基本不受灌溉方式的影响;②全生育期内P处理叶面积指数最大,且在不同畦段的叶面积指数变化不大。T处理叶面积指数在畦中段与畦尾段上的叶面积指数相差较大;③P处理的地上部干物质积累量最高,总体表现为P>S>T>G;④在夏玉米产量上,P处理比T处理提高了7.64,且P处理水分利用效率最高,对比T处理、S处理和G处理分别提高了17.5、9.3和11.9。因此,管渠灌溉能提高水分利用效率,在山东泰安对夏玉米采用管渠灌溉可以取得较好的节水和增产效果。
In order to investigate the effects of different irrigation methods on the growth and water use efficiency of summer maize,this experiment took summer maize as the research object,and set four irrigation methods:traditional continuous irrigation(T),canal irrigation(P),surge irrigation(S)and fixed border surge irrigation(G).The effects of four different irrigation methods on leaf area index(LAI),plant height,dry matter accumulation,and yield and water use efficiency of summer maize were compared and analyzed.The results showed that:①There was no significant difference in plant height under four different irrigation methods during the growth period of summer maize,which was not affected by irrigation methods.②During the whole growth period,the LAI of P treatment reached the maximum,and the LAI of different border segments did not change much.The difference between the LAI in the middle part of the bed and that in the end of the bed was large.③The dry matter accumulation in the above-ground part of P treatment was the highest,and the overall performance was P>S>T>G;④in terms of summer maize yield,P treatment increased by 7.64%compared with T treatment,and P treatment had the highest water use efficiency.Compared with T treatment,S treatment and G treatment,water use efficiency of P treatment was increased by 17.5%,9.3%and 11.9%,respectively.Therefore,pipe and canal irrigation can improve water use efficiency,and the use of pipe and canal irrigation for summer maize in Tai'an,Shandong province can achieve better water saving and yield increasing effects.
作者
荣旭
李宗毅
李英豪
冯健
张政
王春堂
RONG Xu;LI Zong-yi;LI Ying-hao;FENG Jian;ZHANG Zheng;WANG Chun-tang(College of Water Conservancy and Civil Engineering, Shandong Agricultural University, Tai'an 271018, Shandong Province, China)
出处
《节水灌溉》
北大核心
2020年第2期46-50,56,共6页
Water Saving Irrigation
基金
山东省科技发展计划项目(2014GNC112005)
山东省自然科学基金项目(ZR2017MEE001)。
关键词
管渠灌溉
夏玉米生长
水分利用效率
canal irrigation
summer maize growth
water use efficiency
作者简介
荣旭(1995-),男,硕士研究生,主要从事灌排理论与技术方面的研究,E-mail:2363064990@qq.com;通讯作者:王春堂(1965-),男,教授,硕士生导师,主要从事灌排理论与技术、泵站理论与技术等方面的教学科研工作,E-mail:slx@sdau.edu.cn。
