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1996～1997年田间试验表明,晚播冬小麦地膜覆盖穴播,可增加冬前、春季有效积温,促进其生长发育,相应延长幼穗分化时间和灌浆期,利于形成大穗,增加穗粒数和千粒重,从而达到高产。10月16日、10月22日、10月28日三个播期的覆膜穴播冬小麦每公顷分别比其对照增产1838.9kg、1870.8kg和1726.0kg。地膜覆盖后减少了棵间蒸发,提高了水分利用率,全生育期可减少灌水1～2次。是北方晚播冬小麦实现高产高效节水栽培的有效途径。
Field experiments from 1996 to 1997 showed that the late-sowing winter wheat mulching with film-mulching could increase the effective accumulated temperature before winter and spring to promote its growth and development, correspondingly prolong the spike differentiation time and grain filling stage, which will help to form large spikes, increase grains per spike and 1000-grain weight , So as to achieve high yield. On October 16, October 22 and October 28, the mulching of winter wheat with film mulching increased by 1838.9kg, 1870.8kg and 1726.0kg per hectare compared with the control. After film mulching to reduce the evaporation, improve water use efficiency, the whole growth period can reduce irrigation 1 or 2 times. It is an effective way to achieve high yield, high efficiency and water-saving cultivation of late-sowing winter wheat in northern China.