In fact the areas to be treated are so large that it is out of the question to work them manually, apart from the fact that the cost would be prohibitive. ... in with a Dearborn 11-36 type disc harrow towed by a Ford 8 N tractor, followed by a pass with a heavy roller to make sure they were covered. ... A John Deere TZ 100 machine was used, varying the number of tractor-mounted elements from one to four.
Title | : | Can Primitive Farming be Modernised? |
Author | : | F. Jurion, J. Henry |
Publisher | : | - 1967 |
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