摘要
旨在探究多砾石砂土膜下滴灌玉米的灌溉制度。以灌水定额为变量(30.0 mm、37.5 mm、45.0 mm、52.5 mm和60.0 mm),显著性分析和模糊综合评判为手段,进行膜下滴灌玉米的灌溉试验。结果表明:显著性分析结合生长指标的变化趋势分析表明,52.5 mm灌水定额适宜膜下滴灌玉米株高、叶面积指数、茎粗的生长;模糊综合评判确定52.5与60 mm灌水定额最有利。通过显著性分析发现灌水定额的增加对灌溉利用效率无显著影响;灌水定额由30增加至45 mm处理间的耗水量、水分利用效率与产量显著性差异(P<0.05),但45至60 mm处理间无显著性差异。模糊综合评判后发现,52.5 mm的灌水处理对膜下滴灌玉米的生长指标、增产指标与节水指标均最优。以节约水资源的理念出发,综合考虑膜下滴灌玉米的生长指标、产量及其构成,认为拔节期后灌水定额52.5 mm,灌溉定额472.5 mm的灌溉制度最适宜多砾石砂土膜下滴灌玉米种植的推广。
In order to explore the maize irrigation system for maize drip irrigation under mulch in pebbly sandy soil,the irrigation quota was taken as variables(30.0 mm,37.5 mm,45.0 mm,52.5 mm and 60.0 mm),an experiment of drip irrigation under mulch for maize was carried out by using significant analysis and fuzzy comprehensive evaluation.The significance analysis combined with trend analysis of growth indicators showed that 52.5mm irrigation quota was suitable for the growth of plant height,leaf area index and stem diameter by maize drip irrigation under mulch.Irrigation quota of 52.5 and 60 mm was best for growth index,which was determined by fuzzy comprehensive evaluation.The increase of irrigation quota had no significant effect on irrigation efficiency based on the significance analysis.There was significant difference between the water consumption,water use efficiency and yield with increase of irrigation quota from 30 mm to 45 mm(P<0.05),but there were no significant difference under treatments of irrigation quota from 45 to 60 mm.After fuzzy comprehensive evaluation,we found that 52.5 mm irrigation treatment had the best effect on growth index,yield-increasing index and water-saving index of maize drip irrigation under mulch.Based on the concept of saving water resources,after the growth index,yield and yield composition of maize under drip irrigation of mulch were analyzed,the irrigation system of 52.5 mm irrigation quota and 472.5 mm irrigated norm after jointing stage is optimum to be promoted in maize drip irrigation under mulch in pebbly sandy soil.
作者
胡建强
赵经华
杨磊
彭艳平
徐剑
HU Jianqiang;ZHAO Jinghua;YANG Lei;PENG Yanping;XU Jian(College of Water Conservancy and Civil Engineering, Xinjiang Agricultural University, Urumqi 830052,China;Xinjiang Electric Power Design Institute Co., Ltd. of China Energy Engineering Group, Urumqi 830000, China)
出处
《西北农业学报》
CAS
CSCD
北大核心
2020年第8期1167-1176,共10页
Acta Agriculturae Boreali-occidentalis Sinica
基金
“水利工程”重点学科研究项目(SLXK-YJS-2018-02)
新疆维吾尔自治区自然科学基金面上项目(2019D01A40)。
关键词
多砾石砂土
玉米
膜下滴灌
模糊综合评判
灌溉制度
Pebbly sandy soil
Maize
Drip irrigation under mulch
Fuzzy comprehensive evaluation
Irrigation system
