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четверг, 24 ноября 2011 г.

Engine And Tractor Power


Engine And Tractor Power
Publisher: A mer So ciety of Ag ricultural | 2004 | ISBN: 1892769425 | 483 pages | PDF | 14,5 MB


4th EDITION (2004, rev. printing 2005)


Farm tractors are a key element in the mechanization of farm work. Tractors
provide the power for machines that till the soil, plant the crops, control the weeds,
and harvest the crops. The mechanization of farm work has three primary objectives:
To reduce the drudgery of farm work,
To increase the productivity of farm workers, and
To increase the timeliness and quality of farm work.


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