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zuo shan xian you cai quan cheng ji xie hua shi yan shi fan yu tan xi
Author(s): 
Pages: 45-47
Year: Issue:  14
Journal: Farm Machinery

Keyword:  油菜品种全程机械化传统耕作方式人工撒播种植面积油菜种植机械化生产去杂机械化收获农机合作社;
Abstract: <正>油菜是我国主要经济作物之一,年种植面积在1亿亩左右(1亩=1/15hm2,下同),产量在1 200万t,种植面积和产量均占世界的30%左右。长期以来,我国油菜生产一直沿袭传统耕作方式(即一般要经过育苗移栽、整地、人工撒播、覆土、镰刀收割、堆垛后熟、铺场碾压、扬场去杂等),工序繁多、生产成本高、比较效益低、致使国际竞争力弱。近年来,随着农村劳动力大量向城镇转移,加之劳动力工价不断上涨,传统油菜生产争劳力,
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