I think I can build one about 6-8 ft wide using OTR truck tires for under $200.

I did test strips on the fields i planted the other day.
The sides that were packed by the tractor had much more coming up in those areas than did the sides that were just lightly disked in.
Gave them probably a good weeks head start if not more over the non packed side.


Ethical behavior is doing the right thing when no one else is watching - even when doing the wrong thing is legal. Aldo Leopold .. (except when it comes to trailer tags)