滴灌条件下春小麦耗水规律研究  

Study on water consumption rules in spring wheat under drip irrigation

作　　者：程裕伟[1,2] 马富裕[1] 冯治磊[1] 王谊[1] 樊华[1] 廖江[1] 韩广泉[2] 

机构地区：[1]石河子大学/兵团绿洲生态农业重点实验室,新疆石河子832003 [2]新疆巴州农业技术推广中心,新疆库尔勒841100

出　　处：《干旱地区农业研究》2012年第2期112-117,共6页Agricultural Research in the Arid Areas

基　　金：国家自然科学基金项目(31160260);石河子大学重大科技攻关项目(gxjs2010-zdgg03-02);石河子大学高层次人才科研启动资金专项(RCZX201009);新疆生产建设兵团绿洲生态农业重点实验室开放课题发展基金项目(200803)

摘　　要：通过对滴灌（4个水分处理：150、300、450mm和600 mm）和漫灌（CK）不同品种（新春6号、新春22号）的春小麦生育期耗水量的分析,研究新疆石河子地区滴灌春小麦的作物系数、耗水规律及对产量的影响。结果表明：滴灌小麦各水分处理耗水量随着灌水量的增大而增大,整个生育期内蒸发蒸腾量为545.94 mm,平均阶段耗水强度为5.35 mm/d;蒸散量、蒸散强度呈抛物线型,在抽穗~乳熟期达到最高点;滴灌小麦的产量与耗水量呈单峰曲线关系;不同生育阶段的作物系数与FAO推荐的单值作物系数法查得的作物系数不同,在初始生长期、生育后期都大于标准条件下的作物系数值。Field experiment was conducted at experimental station of Shihezi University in 2009,which included 5 water treatments（150 mm（drip irrigation）,300 mm（drip irrigation）,450 mm（drip irrigation）,600 mm（drip irrigation） and 600 mm（furrow irrigation）） and 2 wheat varieties（Xin Chun No.6 and Xin Chun No.22）.To assess wheat yield,crop coefficients and water consumption rules in spring wheat under drip irrigation,watermark was used to detect soil moisture dynamics at the depth of 0～60 cm in wheat field during the whole growing season.The results showed that,water consumption of spring wheat increased with irrigation amount.Its total evapotranspiration was 545.94 mm,and water consuming intensity was 5.35 mm/d.Evapotranspiration and transpiration intensity first increased then decreased with wheat growing,which reached their maxmum at heading-milking stage.Wheat yield first increased then decreased with water consumption.The crop coefficients of different growth stages was different from the data offered by FAO,which was greater than that of standard conditions at initial growth stage and late growth stage.

关 键 词：水分处理 滴灌 春小麦 耗水规律 

分 类 号：S152.7[农业科学—土壤学]