摘要
本文采用大棚试验,研究膜下滴灌(MD)和膜上渠道灌溉(MQ)对盖州市大棚西瓜的生长环境(土壤温度、棚内空气温度、湿度)、植株性状(株高、茎粗)、品质,及需水规律和水分利用效率的影响。试验结果表明:膜下滴灌可以有效提高地表温度并降低棚内空气相对湿度,可提高棚内土壤0～30cm平均地温2.1℃,降低棚内相对湿度7.8%;与渠道灌溉相比,膜下滴灌具有明显的节水增产效应,可以显著提高灌溉水利用率6.42%、水分生产率32.27%。
To discuss the advantages of drip irrigation compared with conventional irrigation, greenhouse test is adopted to study the affects of drip irrigation under film（MD） and canal irrigation on plastic mulch （MQ） on growing environment（soil temperature, air humidity inside the greenhouse）, plant traits（plant height, stem thickness）, quality, water requirement regulation and water use efficiency. The results indicated that drip irrigation can effectively increase the surface temperature of 0--30 cm soil for averagely 2.1℃ while decrease the air relative humidity of greenhouse for 7.8% ; it can save water clearly than canal irrigation which significantly improve efficiency of irrigation water by 6.42% and water productivity by 32. 27%.
作者
陈伟
吴奇
刘光岩
郑俊林
杜大鹏
赵勇
CHEN Wei;WU Qi;LIU Guangyan;ZHENG Junlin;DU Dapeng;ZHAO Yong(Research Institute of Water Resources and Hydropower,Liaoning Pro＇uince Co.Ltd,Shenyang 110003,China;Shenyang Agricultural University,Shenyang 110866,China;Gaizhou irrigation station,Yingkou 115200,China)
出处
《水利科学与寒区工程》
2018年第11期1-4,共4页
Hydro Science And Cold Zone Engineering
基金
国家科技支撑项目(2014BAD12B04)
辽宁省农业科技创新团队项目(2014212003)
中央财政农业科技推广项目(2017)
关键词
膜下滴灌
膜上渠道灌溉
大棚西瓜
需水规律
drip irrigation
canal irrigation on plastic mulch
greenhouse watermelon
water requirementregulation
