摘要
在不同灌溉方式下进行冬小麦土壤水分动态、生长发育的对比试验研究。结果表明:拔节期以前,畦灌与沟灌的土壤水分与生长发育差异不大,拔节后期,随着灌水量的增加,其土壤水分与生长发育差异逐渐明显,沟灌土壤含水量整体较畦灌增幅达到11.6%;叶面积指数(LAI)以及地上干物质分别提高11.4%和39.73%,差异性明显,但株高整体不如畦灌;从产量方面,沟灌模式在整体节水40%条件下,产量平均提高7.66%,水分生产效率提高0.28 kg/m3。达到节水增产的统一。综合本试验数据,其中垄植沟灌配合3水沟灌为本次试验最佳分配方案。
This paper reported a study on the soil water dynamics and growth development of winter wheat under treatments of different furrow irrigations.The results showed that the soil water dynamics and growth development were similar under different irrigation treatments before the jointing stage.After the jointing stage,with the increasing of irrigation amount,the soil water content under furrow irrigation was 11.6% higher than that under border irrigation,and both leaf area index（LAI） and ground dry matter increased by 11.4%and 39.73% under furrow irrigation than those under border irrigation,respectively.However,plant height was lower under furrow irrigation than those under border irrigation.Comparing with the flat irrigation mode,the irrigation amount saved by 40%,the production increased by 7.66%,and efficiency of water use increased by 0.28 kg/m3 under furrow irrigation,which achieved the goals of water-saving and high yield.Based on the data in this study,the best experiment scenario was the three times irrigation under the furrow irrigation and ridge planting.
出处
《南水北调与水利科技》
CAS
CSCD
2011年第2期77-79,83,共4页
South-to-North Water Transfers and Water Science & Technology
基金
国家"十一五"科技支撑计划"河南半干旱区粮食作物综合节水技术研究与示范"(2007BAD88B02)
