基于WIN ISAREG模型的青贮玉米灌溉制度优化研究  

Optimization of Irrigation System of Ensile Maize by WIN ISAREG Model

作　　者：佟长福[1] 李和平[1] 白巴特尔[1] 王军[1] 郑和祥[1] 杨燕山[1] 张晔 

机构地区：[1]水利部牧区水利科学研究所,呼和浩特010020 [2]乌审旗水务和水土保持局,内蒙古鄂尔多斯017300

出　　处：《中国农学通报》2015年第21期65-70,共6页Chinese Agricultural Science Bulletin

基　　金：中国水科院科研专项"灌溉饲草料地主要作物需水量研究和等值线图绘制"(MK2014J06);水利部科技推广计划项目"西北牧区水草畜平衡管理和饲草地节水增效技术示范与推广"(TG1401);公益性行业(农业)科研专项项目"恒压变频供水;用水管理技术研究与成套设备开发"(201203003);水利部公益性行业科研专项项目"牧区灌溉人工草地高效用水技术研究"(201001039);内蒙古自治区新增"四个千万亩"节水灌溉工程科技支撑项目"荒漠化牧区灌溉人工草地综合节水技术集成研究与示范"(20121036)

摘　　要：为了探索锡林河流域青贮玉米高效节水的最优灌溉制度,进行了连续2年的田间灌溉试验,研究了滴灌条件下青贮玉米的灌溉制度。研究表明,青贮玉米在拔节期-抽雄期土壤水消耗比率最低,作物系数、产量反应系数和腾发量在整个生育期内均达到最大,为青贮玉米的需水关键期;在田间试验的基础上,利用WIN ISAREG模型对实际灌溉制度进行了评价,并模拟了多种组合方案,得到了青贮玉米优选的灌溉制度,青贮玉米生育期内共灌水8次,灌水量200 mm,产量下降率为5.6%,灌水效率达到100%。研究结果可为流域内的青贮玉米灌溉预报,以及有效的利用当地水资源提供参考。In order to research the efficient water-saving irrigation system of ensile maize in Xilin River Basin,different irrigation experiments have been carried out for two consecutive years, and the irrigation system ofensile maize under drip irrigation was studied. The results showed that, the soil water consumption rate was thelowest from the jointing stage to the tasseling stage; crop coefficient, yield response coefficient andevapotranspiration were the highest from the shooting phase to tasseling stage, which was the critical period ofwater requirement of ensile maize. Based on the field experiment, WIN ISAREG was used to appraise theactual irrigation system, simulated a variety of combination plans, and the optimization irrigation system wasobtained. Ensile maize field was irrigated eight times during the plant growth period, and the irrigation quantitywas 200 mm, the rate of yield decline was 5.6%, and irrigation efficiency reached 100%. The results canprovide a reference for effective utilization of water resources and irrigation forecast in Xilin River Basin.

关 键 词：青贮玉米 WIN ISAREG模型 灌溉制度优化 

分 类 号：S274.1[农业科学—农业水土工程]