膜下滴灌对麦后复种西兰花生长及水分利用效率的影响  

The Effects of Drip Irrigation under Film on Growth and Water Use Efficiency of Post-wheat Replanted Broccoli

作　　者：田德龙[1] 李泽坤[1] 徐冰[1] 任杰[1] TIAN De-long;LI Ze-kun;XU Bing;REN Jie(Institute of Water Resources for Pastoral Area, Ministry of Water Resources,Hohhot 010020,China)

机构地区：[1]水利部牧区水利科学研究所,呼和浩特010020

出　　处：《中国农村水利水电》2020年第12期77-79,87,共4页China Rural Water and Hydropower

基　　金：内蒙古自治区科技计划项目“灌区土壤水肥药盐调控与污染防治关键技术研究与应用”。

摘　　要：为提高河套灌区麦后闲置农田利用率,实现灌区作物一年两熟的种植模式,进行了膜下滴灌条件下麦后复种西兰花的试验。研究膜下滴灌条件下不同灌溉水量(232.5、273、300 mm)对西兰花生长、产量及水分利用效率的影响,并提出膜下滴灌下麦后复种西兰花的适宜灌溉水量。结果表明:随着灌溉水量的增加,西兰花生长状况、干物质积累量、产量以及水分利用效率总体上呈先增大后减小的变化趋势,当灌溉水量为273 mm时,各项指标达到最佳。其中,西兰花产量和水分利用效率分别提高20.48%、31.29%。因此,结合上述指标综合考虑,膜下滴灌条件下麦后复种西兰花适宜灌溉水量为273 mm。In order to improve the utilization rate of post-wheat idle farmland in Hetao Irrigation District,and realize the cropping mode of two crops a year in the irrigation district,a trial of multi-broccoli broccoli cultivation under wheat under drip irrigation is conducted.To study the effects of different irrigation water quantities(232.5,273,300 mm)on the growth,yield and water use efficiency of broccoli under film drip irrigation and put forward the optimum irrigation water for broccoli replanting after wheat under drip irrigation.The results show that with the increase in irrigation water,the growth status,dry matter accumulation,yield and water use efficiency of broccoli generally increases first and then decreases.When the irrigation water amount is 273 mm,the indicators reach the best.Among them,broccoli yield and water use efficiency has increased by 20.48%and 31.29%,respectively.Therefore,combined with the above indicators,it is suggested that the suitable irrigation water for post-wheat replanted broccoli under drip irrigation is 273 mm.

关 键 词：膜下滴灌 西兰花 干物质 产量 水分利用效率 

分 类 号：S275.6[农业科学—农业水土工程] S635.3[农业科学—农业工程]