膜上灌对春小麦产量及产量构成因素的效应分析  

Effects of irrigation on the film mulching on yield formation of spring wheat

作　　者：王小军[1] 成自勇[1] 陈丽娟[1] 张自和 

机构地区：[1]甘肃农业大学工学院,甘肃兰州730070 [2]甘肃省草业生态研究所,甘肃兰州730020

出　　处：《甘肃农业大学学报》2006年第6期137-141,共5页Journal of Gansu Agricultural University

基　　金：国家高科技农业"863"计划(2002AA6Z3191)

摘　　要：从2004年到2005年在甘肃省张掖市甘州区二十里堡乡七号村进行了膜上灌春小麦调亏效应研究.结果表明,在膜上灌水的方式下覆膜处理的耗水量为460.1 mm,比对照减少了310.3 mm,但比对照增产1 363.69 kg/hm2,增收1 817.1元/hm2,水分利用效率提高了6.0 kg/(mm.hm2);在同一水分条件下,覆膜处理比露地处理增产54.22%,增收3 400.6元/hm2,水分利用效率提高了4.67 kg/(mm.hm2).覆膜处理具有明显的节水增产效应,开花后干物质积累量,茎、叶、穗等器官营养物质的分配、转换均高于露地处理,且产量达最高.A field experiment was conducted from 2004 to 2005 in the Seventh Village of Twentith Countryside in Zhangye City of Gansu Province,aiming at revealing the effects of regulated deficit irrigation on plastic film mulch on spring wheat yield.The results showed that the water consumption under film mulch treatment was 460.1 mm and decreased about 310.3 mm than the control,but the yield increased 1363.69 kg/hm^(2),the income increased 1817.1 yuan/hm^(2),and the water use efficiency(WUE) increased(6.0) kg/(mm·...

关 键 词：节水增产 膜上灌 水分利用效率 经济效益 产量 

分 类 号：S512.12[农业科学—作物学]