西北旱区喷灌条件下洋葱灌溉制度研究  

Research on Onion Sprinkler Irrigation Schedule in Northwest Arid Regions of China

作　　者：买自珍[1] 樊亚妮 周皓蕾[1] 佘萍[1] 米治明 王勇[3] 金学平[1] 

机构地区：[1]固原市农业科学研究所,宁夏固原756000 [2]固原市园林局,宁夏固原756000 [3]宁夏师范学院,宁夏固原756000

出　　处：《节水灌溉》2014年第2期11-13,共3页Water Saving Irrigation

基　　金：自治区科技计划"宁夏干旱半干旱区现代节水高效农业关键技术创新与示范"--抗旱节水优良植物优化布局与抗旱节水栽培技术集成创新研究课题(2011ZDN04);特色作物高效节水新品种新技术集成与示范--红葱丰产栽培综合配套技术研究与示范

摘　　要：2012年在西北干旱地区宁夏中部干旱带同心黑膜覆膜条件下,研究了洋葱喷灌方式灌溉量及灌水次数对洋葱产量的影响。结果表明:喷灌2 100m3/hm2处理鳞茎产量最高为77 414.1kg/hm2,较喷灌900m3/hm2处理增产28.50%,供水效率143.09kg/(hm2·mm),水分生产效率155.39kg/(hm2·mm),与喷灌900m3/hm2相比,水分生产效率提高7.53%。因此,优化出洋葱喷灌生产模式灌溉定额2 100m3/hm2,缓苗水300m3/hm2、叶旺长期600m3/hm2、喷灌2次,鳞茎生长期1 200m3/hm2、喷灌4次。Abstract ： In 2012, under the black film mulching condition in the northwest arid areas of central Ningxia arid zone,Tongxin county, the influences of sprinkler irrigation times and quantity on the yield of onion were studied. The result showed that the treatment with irrigation quantity of 2 100 m^3/hm^2 got the highest yield of 77 414. 1 kg/hm^2 , which was higher than the yield of the treatment with irrigation quantity of 900 m^3/hm^2 by 28. 50%, the water-supply efficiency was 143.09 kg/（hm^2 · mm） and the water production ef- ficiency was 155.39 kg/（hm^2· mm）, which was enhanced by 7. 53% compared with the treatment with irrigation quantity of 900 m^3/hm^2. So the optimal sprinkler irrigation schedule was got, which was that the irrigation quota was 2 100 m^3/hm^2 , the irrigation quantity was 300, 600, 1 200 m^3/hm^2 in the seedling stage, leaf exuberant stage and bulblet growth stage, respectively; the irriga- tion times is 2 and 4 in leaf exuberant stage and bulblet growth stage, respectively.

关 键 词：西北旱区 喷灌 洋葱 灌溉制度 

分 类 号：S274.1[农业科学—农业水土工程]