缓苗期不同灌水量对地下滴灌无膜移栽棉花产量的影响  

Effect of Different Irrigation Amount in Slow Seedling Stage on Yield of Cotton Transplantation Without Film Under Subsurface Drip Irrigation

作　　者：雷成霞[1] 魏闯[1] 王振华[2] LEI Cheng-xia;WEI Chuang;Wang Zhen-hua

机构地区：[1]山西水利职业技术学院,山西运城044004 [2]石河子大学水利建筑工程学院,新疆石河子832000

出　　处：《山西水利科技》2019年第4期24-27,共4页Shanxi Hydrotechnics

基　　金：国家自然科学基金项目(50809039)

摘　　要：无膜移栽棉花地下滴灌技术在节水效率上有着明显的效益,而苗期能否出苗和灌水量的多少是制约其发展的关键因素。文中利用测坑进行试验研究,分析了缓苗期灌水量与棉花生长和产量的关系,结果表明:综合考虑水分利用率的情况下,缓苗期灌水量45 mm更有利于棉苗尽快渡过缓苗期成活,并获得较高的产量,结论将为该技术推广应用提供参考和理论支持。The technology for cotton transplantation without film under subsurface drip irrigation has obvious benefits in water saving efficiency,and the number of seedlings and irrigation amount in slow seedling stage are the key factors that restrict its development. In this paper,the relationship between the amount of irrigation in the slow seedling stage and the growth and yield of cotton was analyzed by the pit test. The results showed that under the condition of comprehensive water utilization,the irrigation volume of 45 mm in the slow seedling stage is more conducive to the cotton seedlings passing through the slow seedling stage as soon as possible,to survive and obtain higher yields. The conclusion will provide reference and theoretical support for the promotion and application of this technology.

关 键 词：地下滴灌 无膜移栽 棉花 缓苗期 灌水量 

分 类 号：S275.4[农业科学—农业水土工程]