栽培方式和播期对玉米生长发育及产量影响很大，通过在黑龙江省佳木斯地区，选用当地主栽品种，系统比较了栽培方式及播期对玉米生长发育及产量的影响，并分析了原因，结果表明：行间覆盖膜及垄上覆膜的处理，因前期保水、保温，株高、茎粗、叶面积以及根干重、产量高于其它栽培方式；5月15日播种的处理成熟期株高最高，而4月30日播种的处理成熟期株高最低；随着播期的延后，拔节期茎粗和叶面积逐渐降低；随着播期的延后玉米喇叭口期根干重逐渐降低，须根数逐渐减少。5月5日播种的处理产量最高，亩产681.9㎏，而5月10日播种的处理产量最低，亩产501.9㎏。

Educate the way and sow to expect the influence to the corn growth develop and the yield affect very greatly, pass the province good wood si region in Heilongjiang, choose to plant the species with the local lord, the system relatively to educate the way and sow to expect to the corn the growth the growth and the yield, and analyzed the reason, the result enunciation:Go overlays the film and zhuis up the processing of the film of fu , because of expecting to protect the water, heat preservation before, the stub is high, the caulis is thick, leaf's area and root the stem is heavy, the yield was high to educate the way in the other;The processing maturity period stub sow seeds on May 15 is high and tallest, but the processing maturity period stub sow seeds on April 30 is high and lowest;Along with sow to expect of postpone after, pull out the stanza period caulis thick lower with leaf's area gradually;Along with sow to expect of postpone behind the corn trumpet expects a stem heavy lower gradually, the root of whiskers counts the gradual decrease.The processing yield sow seeds on May 5 is tallest, the acre produces 681.9 ㎏s, but the processing yield sow seeds on May 10 is lowest, the acre produces 501.9 ㎏s.