摘要
为研究不同灌溉方式对冬小麦生长的影响并找到最适合的用水量,进行了充分滴灌、适量滴灌、漫灌3个处理的大田试验。结果表明,3个处理中,0～20 cm土壤含水量在冬小麦生育期内变化幅度最大,随着深度的增加,变化幅度逐渐减小,40～60 cm土壤含水量变化幅度最小;同层土壤含水量变化幅度比较,滴灌处理要小于漫灌;冬小麦根系主要聚集在0～40 cm土壤层;滴灌处理的表层冬小麦根量要显著多于漫灌处理;随着深度的增加,根量呈减少的趋势,其中滴灌处理的减少趋势更快;3个处理对冬小麦扬花期生物量、SPAD值、产量、穗粒数、千粒质量都无显著性差异;充分滴灌下的小麦穗数要显著高于适量滴灌处理。
In order to research on different irrigation technology on production of winter wheat and find the most appropriate volume of water,the author did an experiment which used three different trials（sufficient drip irrigation,appropriate amount drip irrigation,flood irrigation） in the field in Quzhou county,Hebei Province.Such Results as follow：the range of soil moisture on winter wheat stage in the depth from 0-20 cm is the largest,the deeper,the smaller.The range of soil moisture in the depth from 40-60 cm is the smallest;in the same depth,soil moisture of drip irrigation applied is smaller than flood irrigation.Roots of winter wheat mainly distribute in the depth between 0-40 cm,the amount of roots under drip irrigation are larger than flood irrigation;with the depth becomes higher,the amount of roots are smaller,while the decreasing trend under drip irrigation is faster;there was no significant difference on biomass at flowering stage,SPAD,yield,grain number per spike,1000-grain weight in the three trials;panicles per square of sufficient drip irrigation is notable higher than that appropriate drip irrigation.
出处
《华北农学报》
CSCD
北大核心
2013年第2期175-179,共5页
Acta Agriculturae Boreali-Sinica
基金
河北省重大技术创新项目(12220201Z)
948项目"主要农作物养分高效利用的农机农艺结合先进技术引进"(2011-G18)
关键词
滴灌
小麦
漫灌
土壤含水量
Drip irrigation
Wheat
Flood irrigation
Soil moisture
