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shi qi shou huo yu mi ti gao pin zhi chan liang
Author(s): 
Pages: 63-64
Year: Issue:  20
Journal: Farm Machinery

Keyword:  玉米品种玉米种业品质产量适期收获收获机械机械化收获玉米籽粒完熟期收获时期抗倒伏能力;
Abstract: <正>籽粒收获已经是当前玉米种业界最时髦的概念和话题。任何新上市的品种,无论其生育期和产量表现如何,一定都要和籽粒收获的概念沾亲带故。与人工收获相比,农业机械化的籽粒收获的效益十分明显。人工收获1亩地的玉米至少需要2个劳动力(1亩=1/15hm2,下同),以现在的劳动力平均成本,每亩地需要260~300元。人工收获玉米之后还要进行晾晒和脱粒,这样下来,每亩地的收获总成本大概在350
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