 My name is Chuck Muller. I'm a researcher at Cornell University in the Department of Crop and Soil Sciences. I'm working on an organic cropping systems project funded by USDA. This is a ridghtill system for vegetables we're trying to develop. These ridges were originally built two years ago. Since then they've been scraped down and reformed several times but the idea is that we keep the wheel traffic in the same lanes all the time and that allows the bases of the ridges to develop good soil structure by earthworm channels and dead root channels. That improves the ability of the crop to root and improves disease management. It doesn't look like much now but three weeks ago in mid-June these ridges had vetch about that high all over them. We flail mowed the the vetch about a week later came through and scraped off the tops. That mixed the soil in with the vetch a little bit helped speed up the decomposition. A week after that the ridges were reformed. We're now ready to scrape the ridges again and plant cabbage. The reason we scrape and reform the ridges is to get the vetch incorporated so that it can decompose and also to maintain good weed management so that the weeds are relatively under control. This is our ridge scraper is made by Sukup. They don't make them anymore but it's fairly simple design. There's these canted wheels keep the scraper on the ridge and we've got a double colter here that cuts through any residue and finally this snow plow arrangement scrapes the soil off to the side. The parallel linkage here holds the implement at a constant depth. The adjustment is up here in front. You can adjust it up and down by setting these four bolts into different holes. The goal is to scrape about two to three inches off the top of the ridge.