NW Washington | CASE3594 - 6/29/2020 20:02
You’ll have to explain jointers to me. I can look tomorrow.
Jointers are those things that look like small plow bottoms that run ahead of the main plow and strip off a small band of soil and residue and throw it into the furrow so the main plow bottom covers the residue better. They are commonly used in Europe and the Kuhn plow in this link has them. But if you have much residue, especially if it is long like corn stocks or wheat stubble the plow will soon hopelessly plug. In the USA "cover boards" are often attached to the top of the moldboard to perform much the same function as jointers but are less apt to plug up. Coulter are sometimes used and sometimes not. Often coulters are only used on the rear plow so it leaves a nice furrow to follow on the next pass.
European Kuhn plow video: https://www.youtube.com/watch?v=fH-xHlsS2I4
Here is how to cover residue in Holland. A front flail mower. The plow has jointers too. In later video the blue Lemken plow has the vertical fixed knives on each bottom too. https://www.youtube.com/watch?v=XtkXRiJ8t_s
Edited by JohnW 6/30/2020 01:41
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