玉米畦作覆膜高产技术研究

High Yield Technique of Corn-Bed Culture and Film-mulching

此项研究是在１９９０年预备试验的基石出上，于１９９１～１９９２年在大庆石油管理局所属各农工商分公司进行的，所谓玉米畦作是在土壤整平的基础上，运用配套畦作覆膜机在覆膜的同时做畦子。畦宽１．２米、畦上双行，畦上行距４０～４５厘米，畦间行距７５～８０厘米。与７０厘米垅作相比，具有合理密植（可以提高密度３０％左右），增强田间通透性，提高对面积指数，可以充分利用光、热、土壤肥力等自然资源，充分发挥覆膜增产潜力。试验结果表明：畦作覆膜产量高，两年２００公顷，平均亩产８３６．６公斤，最高亩产９９２．５公斤，平均比垅作增产３５．２％，最高增产５３．４％。亩增收８５．６元，并且，这种栽培方法容易操作，具有一定的科学性和实用性，是目前北方高寒地区玉米再高产的新途径。

The research was taken at the branches of A.I.C.Company of Daqing petroleum Bureau between 1991～1992, based on the prepared test in 1990.The bed culture of corn was practised with improved film-layiny machine bedding meanwhile covering film on flat field.The width of the bed was about 1.2m.There were two rows on each bed, with a 40～50cmrowledge.The spacing between beds was 75～80cm.Compared with the 70cm ridge culture,the new way of culturing can make theplants have a favour close spacing (increase about 30%),give a good ventilation to the field, enlarge leaf area index, make good uses of light,heat and fertilizer and make the most of the film-mulching work.The results showed that the bed culture could attain high yield:12544.5kg/ha.in averaye and 14887.5kg/ha.in the highest on 200ha area for two years. The output increased by 35.2% in average and 53.4%in the highest than that of regular ridge cultune.The income increased by 1284 /ha.Thenew technology for corn growing is easy to deal with and is scientific and useful.The bed culture is the advanced way for corn to get high yield in the North and cold districts.