压片式微喷带补充灌溉对玉米生长和产量的影响  

Effects of Supplement Irrigation by Polyethylene-blankholder Spray Tape on the Growth and Yield of Maize

作　　者：窦超银[1] 孟维忠[1] 

机构地区：[1]辽宁省水利水电科学研究院,沈阳110003

出　　处：《灌溉排水学报》2015年第7期1-5,共5页Journal of Irrigation and Drainage

基　　金：水利部科技推广计划项目(TG1203);农业攻关计划项目(2013212001)

摘　　要：为在辽西半干旱地区发展节水农业,通过大田试验,对比分析了压片式微喷带灌溉与传统管灌对玉米生长和产量的影响。结果表明,压片式微喷带灌溉可使玉米灌溉水量和耗水量减少23.8~35.1mm和24.1~48.2mm,且节水效益随着生育期内降雨量的减少而增大;压片式微喷带灌溉对玉米植株生长性状影响较小,而干旱年份则有利于LAI的提高;压片式微喷带灌溉对玉米产量及其构成的影响较小,但WUE可提高6.9%~8.7%。压片式微喷带灌溉技术是适宜辽西半干旱地区的节水灌溉技术,可作为地区节水农业发展的选择。In order to develop water-saving agriculture in semiarid zone of west Liaoning, field experiments were conducted to analyze the effects of supplement irrigation by polyethylene-blankholder spray tape （WP） and irrigation with low pressure pipe on the growth and yield of maize. The results showed that irri- gation water amount and crop water consumption decreased by 23.8-35.1 mm and 24.1-48.2 mm, re- spectively, and the water-saving effect increased with the increase of precipitation under WP treatment. WP treatment had little effect on the growth of maize, but it might be conducive to the improvement of LAI during the drought years. WP treatment had little impact on the yield and its components of maize, but WUE was improved obviously by 6. 9% ;8. 7%. Therefore, irrigation by polyethylene-blankholder spray tape is suit in the semiarid zone of west Liaoning, and could be a kind of water-saving irrigation method in the area.

关 键 词：产量 节水灌溉 水分生产效率 压片式微喷带 

分 类 号：S513[农业科学—作物学]