不同灌溉定额对地下滴灌无膜移栽棉花耗水和产量影响的研究  

Effect of Different Irrigation Quotas onWater Consumption and Yield of Cotton Transplantation Without FilmUnder Subsurface Drip Irrigation

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

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 [3]新疆农业大学水利与土木工程学院,新疆乌鲁木齐830000

出　　处：《山西水利科技》2020年第1期37-40,共4页Shanxi Hydrotechnics

基　　金：国家自然科学基金项目(50809039)。

摘　　要：针对地下滴灌无膜移栽棉花技术土壤水分变化规律与常规滴灌不同的问题,通过大田试验,分析了不同灌水量对棉花耗水和产量的影响,得出了NFT-SDI棉花全生育期水分变化主要在20~100 cm深度土层;耗水量和耗水强度均以花铃期最大,吐絮期最小,且两者随灌溉定额的增加而增大;综合考虑灌溉水生产效率,当灌水量为450 mm左右时,更利于棉花获得较高产量。这为制定NFT-SDI棉花灌溉制度和研究需水规律,提供了一定的理论依据。Aiming at the problem that the soil moisture change law of the technology for cotton transplantation without film under subsurface drip irrigation is different from conventional drip irrigation,this paper analyzes the effects of different irrigation amounts on cotton water consumption and yield through field experiment,and obtains the moisture of NFT-SDI cotton during the whole growth period.The change mainly exists in the soil layer of 20-100 cm depth;Both water consumption and water consumption intensity are the largest in flowering and bolling period,and the boll opening period is the smallest,and both increases with the increase of irrigation quota.Considering the irrigation water production efficiency,when the irrigation amount is about 450 mm,it is more conducive to high production of cotton.This provides a theoretical basis for the development of NFT-SDI cotton irrigation system and research on water demand.

关 键 词：地下滴灌 无膜移栽 棉花 灌溉定额 耗水量 

分 类 号：S562[农业科学—作物学]