高海拔寒区水氮耦合对青稞产量和品质的影响  

Effects of Water-nitrogen Coupling on Highland Barley Quality and Yield in a High-altitude Cold Zone

作　　者：时学双 王润芝 达瓦琼达 索珍 杨雪涛 SHI Xueshuang;WANG Runzhi;Dawaqiongda;Suozhen;YANG Xuetao(Institute of Agricultural Sciences of Shgatse,Tibet Shigatse 857000,China;College of Resources and Environment,Shandong Agricultural Uni-versity,Shandong Tai’an 271000,China;Tibet Academy of Agricultural and Animal Husbandry Sciences,Tibet Lasha 850000,China)

机构地区：[1]西藏自治区日喀则市农业科学研究所,西藏日喀则857000 [2]山东农业大学资源与环境学院,山东泰安271000 [3]西藏自治区农牧科学院,西藏拉萨850000

出　　处：《西藏农业科技》2024年第4期21-25,共5页Tibet Journal of Agricultural Sciences

基　　金：西藏自治区日喀则市科技计划项目(RKZ2020KJ08)。

摘　　要：为阐释青稞产量、品质与灌水量和施肥量的关系,以藏青3000为材料,在西藏高海拔寒区进行了为期两年的水肥耦合试验。结果表明:土壤肥力充足的条件下,灌水对藏青3000产量、籽粒淀粉含量、籽粒支链淀粉含量与面筋含量影响显著;施氮对藏青3000产量、面筋含量影响显著。灌水与施氮对藏青3000籽粒蛋白质含量、面筋含量与稳定性有显著的交互效应。本试验条件下,拔节期、抽穗期、灌浆期分别灌水1次,每次灌水40 m^(3)/667m^(2),施氮量为180 kg/hm^(2)时,藏青3000产量最高。To elucidate the relationship between the yield,quality,and irrigation and fertilization of highland barley,a two-year water-fertilizer coupling experiment was conducted in the high-altitude cold region in Tibet,using Zangqing3000 as the material.The results showed that under conditions of sufficient soil fertility,irrigation had a significant impact on the yield,grain starch content,grain amylopectin content,and gluten content of Zangqing3000.Nitrogen application had a significant impact on the yield and gluten content of Zangqing3000.Irrigation and nitrogen application had significant interactive effects on the grain protein content,gluten content,and stability of Zangqing3000.Under the conditions of this experiment,when the grain was irrigated once at the jointing stage,heading stage,and filling stage,each time with 40 m^(3)/667m^(2) of water and 180 kg/hm^(2) of nitrogen application,the yield of Zangqing3000 was the highest.

关 键 词：青稞 水氮耦合 灌水次数 施肥量 品质 

分 类 号：S512.3[农业科学—作物学]