天津市收获机械的现状长期以来,天津市收获农作物主要靠人力、畜力完成。自70年代开始使用收割机以来,一直以小型机动割晒机为主,大型联合收割机始终处在徘徊不前的状态。自80年代中期以来,小型割晒机以每年千台左右的速度递增(见表),使天津市农作物收获由人工为主,转变为以割晒机为主的分段收获阶段。 The status quo of harvesting machinery in Tianjin For a long time, harvesting of crops in Tianjin mainly depends on manpower and animal power. Since the beginning of the 70’s the use of harvesters has been dominated by small motorized windrower, large combine harvesters have always been in a state of stagnation. Since the mid-1980s, the small windrower has been increasing at a rate of about 1,000 units per year (see table), which has led to the main crop harvesting in Tianjin from a manual to a sub-harvest phase based on windrower.