干旱地区农业研究
榦旱地區農業研究
간한지구농업연구
AGRICULTURAL RESEARCH IN THE ARID AREAS
2014年
5期
7-11,66
,共6页
董玉云%王宝成%贾丽华%穆红文%费良军
董玉雲%王寶成%賈麗華%穆紅文%費良軍
동옥운%왕보성%가려화%목홍문%비량군
膜孔灌%夏玉米%耗水特性%水分生产效率
膜孔灌%夏玉米%耗水特性%水分生產效率
막공관%하옥미%모수특성%수분생산효솔
film hole irrigation%summer corn%water consumption characteristics%water production efficiency
通过测坑试验,研究了膜孔灌灌水频率和灌水量对夏玉米耗水量、产量和水分生产效率产生的影响。结果表明,拔节期和抽穗期是玉米需水的关键阶段;相同灌水频率时,耗水量随灌水量的增加而增大,相同灌水量时,耗水强度随灌水频率的增加而增大;玉米产量与玉米生育期总耗水量之间呈良好的抛物线关系;膜孔灌夏玉米产量和水分生产效率较佳的需水量是2546~3410 m3·hm-2;灌水条件相同时,玉米膜孔灌比常规畦灌的耗水量减少6.2%,水分生产效率提高23.3%,增产15.9%。
通過測坑試驗,研究瞭膜孔灌灌水頻率和灌水量對夏玉米耗水量、產量和水分生產效率產生的影響。結果錶明,拔節期和抽穗期是玉米需水的關鍵階段;相同灌水頻率時,耗水量隨灌水量的增加而增大,相同灌水量時,耗水彊度隨灌水頻率的增加而增大;玉米產量與玉米生育期總耗水量之間呈良好的拋物線關繫;膜孔灌夏玉米產量和水分生產效率較佳的需水量是2546~3410 m3·hm-2;灌水條件相同時,玉米膜孔灌比常規畦灌的耗水量減少6.2%,水分生產效率提高23.3%,增產15.9%。
통과측갱시험,연구료막공관관수빈솔화관수량대하옥미모수량、산량화수분생산효솔산생적영향。결과표명,발절기화추수기시옥미수수적관건계단;상동관수빈솔시,모수량수관수량적증가이증대,상동관수량시,모수강도수관수빈솔적증가이증대;옥미산량여옥미생육기총모수량지간정량호적포물선관계;막공관하옥미산량화수분생산효솔교가적수수량시2546~3410 m3·hm-2;관수조건상동시,옥미막공관비상규휴관적모수량감소6.2%,수분생산효솔제고23.3%,증산15.9%。
Through the field small plots experiment,has studied the impacts of irrigating frequency and irrigating volume to the water consumption,yield and water production efficiency of summer corn under film hole irrigation .The re-sults showed that:The jointing stage and heading stage were the key stage for the corn water requirement .The water con-sumption was increasing with added irrigating volume under the same irrigating frequency .The water consumption intensi-ty was added with increase of the irrigating frequency at the same irrigating quota .The corn yield with total water con-sumption showed a good parabolic relation .The corn water requirements with better yield and high water production effi-ciency were 2 546 m3·hm-2 to 3 410 m3·hm-2 by the film hole irrigation .Compared with the film hole irrigation to the common border irrigation,the water consumption was decreased 6 .2%,water production efficiency was increased 23 .3%,and yield was increased 15 .9%under same irrigation condition .