Hey Bill. As an agronomist and farmer, I just wanted to pass along the fact that tree roots have a tremendous negative impact on our crops and our food plots.
We converted a sub-soiler into a root cutter a few years ago, to run around the edges of our fields bordered by trees.
Huge increase in productivity of crops and food plots in these little necks surrounded by trees. It’s the roots from the trees not the shade that kills productivity!!
Try it one time. You will be impressed, especially in a dry year!!
I have seen the big rotary cutters sold by Vermeer, etc., but I never knew you could do that with something as simple as a single shank sub-soiler. These are pretty affordable. I know that the trees are sucking the moisture out of those plots. I will get my hands on a sub-soiler this summer and modify it (assuming weld a plate on the leading edge and sharpen it) and get those roots cleared. Thanks for the input. Very useful. (4-20-17)