I don't think anyone is telling you not to plant a food plot. It just seems like you are pissing in the wind trying to prepare food plots with a Mantis tiller. We work with a wildlife biologist and he recommends planting a minimum or 1% of our land in food plots for wildlife management. We are planting roughly 10% of our place though, because the deer wiped out the small 1/2 acre plots we used to plant. If you don't have enough they'll eat the plant down to the root and it won't grow back.

My .02 cents.