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60年代初期,我国南方水田地区在沤田拖拉机和机滚船的基础上创新发展了船式拖拉机。它用船体和驱动轮分别承担一般拖拉机驱动轮承重和驱动两种功能,较好地解决了拖拉机下水耕作的问题,在70年代得到了大面积推广使用。80年代初期保有量增达到10多万台。近年来,由于原材料涨价、生产成本的提高、船拖的发展走入低谷。生产厂家现约有7、8家,年产量仅在千台左右,现在船拖保有量减至5万台左右。
In the early 1960s, a paddle tractor was innovatively developed on the basis of tractors and ship rovers in the paddy field in the paddy field in southern China. It uses the hull and the driving wheel to bear the functions of load-bearing and driving of the general tractor driving wheel, which solves the problems of the tractor’s water cultivation. It was widely used in the 70s. In the early 1980s, the number of possessions increased by more than 100,000 units. In recent years, due to the increase in raw material prices, the increase in production costs, and the development of ship trailers, they have reached a low point. There are about 7 or 8 manufacturers now, and the annual output is only about a thousand units. Now the amount of ship towage is reduced to about 50,000 units.