tillage

Howdy folks, new to the site, seasoned to the seat. I live where the primary crop grown is rocks. Corn country but the rock piles are frequent and deep around fields. Below 6” it’s digging with a spud bar and after about 18” it turns into shale. Looking to make a couple new food plots this...

Anybody have experience with any of these? We're market farming flowers/vegetables/berries. I've always used a rotary tiller, but have been recommended various alternatives over the years. The spaders and power harrows are way more expensive. Are they that much better? I've never known...