【摘要】 通过设置不同灌水量的田间试验,以冬小麦“石麦18”为研究对象,研究了不同灌水量对大田冬小麦耗水规律、土壤水利用及产量构成因素的影响,为河北省山前平原区冬小麦灌溉提供科学合理的参考。结果表明,不同水分处理对冬小麦株高、穗长、小穗数、千粒质量及产量的影响差异均不显著,但显著影响穗数和穗粒数。在试验区所在的河北省山前平原区,在冬小麦返青和灌浆期各灌水一次,每次灌水525～600 m~3/hm~2,可达到合理利用土壤水,节水高产的效果。更多还原

【Abstract】 In order to provide reference for winter wheat irrigation of piedmont plains in Hebei Province,winter wheat variety “shimai18” was used to study the water consumption pattern,soil water use and yield components of winter wheat by setting the different irrigation amount.The results showed that irrigation amount had no significant effect on plant height,spike length,spikelet number,1000-grain weight and yield,but had significant effect on spike numbers per unit area and grain numbers per spike.In Hebei Province piedmont plain,it is suggested that irrigation amount for winter wheat is 525～600 m~3 each hectare and irrigate once during returning-green and grain filling stages respectively,to ensure both water saving and high yield for winter wheat.更多还原