CAJ | 학술논문

　　为探索适合河北省的冬小麦高产栽培模式，明确适应气候变化的冬小麦适期晚播范围，实现冬小麦高产稳产，以冬小麦品种冀5265为试材，设播期10月5日、10月9日、10月13日和10月17日计4个处理，并调整播量分别为204 kg/hm2、228 kg/hm2、255 kg/hm2和288 kg/hm2，2008～2009年在河北省藁城市进行了不同播期处理对冬小麦产量及其生长发育的影响研究。结果表明：随着播期的推迟，越冬前的积温减少，冬小麦单株分蘖数、次生根数、株高、成穗率、单位面积穗数和穗粒数均呈逐渐降低趋势，最终导致冬小麦显著减产；通过回归方程模拟计算得出，河北省冬小麦的适宜播种期为10月5～11日，相应的合理基本苗数为307.5～379.5株/m2。
　　위탐색괄합하북성적동소맥고산재배모식，명학괄응기후변화적동소맥괄기만파범위，실현동소맥고산은산，이동소맥품충기5265위시재，설파기10월5일、10월9일、10월13일화10월17일계4개처리，병조정파량분별위204 kg/hm2、228 kg/hm2、255 kg/hm2화288 kg/hm2，2008～2009년재하북성고성시진행료불동파기처리대동소맥산량급기생장발육적영향연구。결과표명：수착파기적추지，월동전적적온감소，동소맥단주분얼수、차생근수、주고、성수솔、단위면적수수화수립수균정축점강저추세，최종도치동소맥현저감산；통과회귀방정모의계산득출，하북성동소맥적괄의파충기위10월5～11일，상응적합리기본묘수위307.5～379.5주/m2。
Adjust the sowing date to fit for the climate change and get the high yield of winter wheat is very impor-tant in Hebei Province.Taking winter wheat cultivar Ji 5265 as test material, 4 sowing dates including October 5, October 9, October 13 and October 17 were desighed, and the sowing rate respectively were 204 kg/hm2, 228 kg/hm2 , 255 kg/hm2 and 288 kg/hm2 , the effects of different sowing dates on the yield and growth of winter wheat in Gaocheng City of Hebei Province during 2008 -2009 were studied.The results showed that the accumulated temperature before wintering was reduced, the plant tillers number, secondary root number, plant height, spike rate, spike number per unit and the grain number per spike of winter wheat were decreased with the delay of sowing date, and the yield of winter wheat was decreased significantly with the delay of sowing date.Through the regression equation simulation calculation , we recommended that the suitable sowing date was October 5-11, and the reasonable basic seeding number was 307.5-379.5 plants/m2 in Hebei Province.