不同灌水下限和追肥时间对冬小麦的影响分析  

Impact analysis of different irrigation lower limit and topdressing time on winter wheat

作　　者：宫爱玺 GONG Aixi(Hebei Promotion Center of Water Resources Research and Water Conservancy Technology Experiment,Shijiazhuang 050061,China)

机构地区：[1]河北省水资源研究与水利技术试验推广中心,石家庄050061

出　　处：《水科学与工程技术》2023年第2期43-45,共3页Water Sciences and Engineering Technology

摘　　要：通过开展冬小麦坑测灌溉试验,设置不同灌水下限及不同追肥时间,分析对冬小麦需水量、株高及产量的影响。结果表明:不同的灌水下限对冬小麦需水量、株高及产量影响显著,不同的追肥时间对冬小麦需水量、株高及产量影响不显著,拔节期追肥会增加冬小麦需水量,略提高冬小麦产量。本试验研究成果可为冬小麦高效水肥管理及农业用水定额修订提供技术参考。In this paper,the effects of different irrigation limits and different topdressing time on the water demand,plant height and yield of winter wheat were analyzed by carrying out the winter wheat pit test irrigation experiment.The results showed that different lower irrigation limits had a significant impact on the water demand,plant height and yield of winter wheat,and difierent topdressing time had no significant impact on the water demand,plant height and yield of winter wheat.Topdressing at jointing stage would increase the water demand of winter wheat and slightly increase the yield of winter wheat.The research results of this experiment can provide technical reference for efficient water and fertilizer management of winter wheat and revision of agricultural water quota.

关 键 词：灌溉试验 灌水下限 需水量 冬小麦 追肥 

分 类 号：TV871[水利工程—水利水电工程]