Organic No-Till Sweet Potato Production: Weed 'Em and Reap Part 2
Weed 'Em and Reap Part 2: Reduced tillage strategies for vegetable cropping systems [DVD]. A. Stone. 2006. Oregon State University Dept. of Horticulture. Corvallis, Oregon. Available at: http://www.weedemandreap.org (verified 17 Dec 2008).
Danielle Treadwell, Center for Environmental Farming Systems. Goldsboro, NC.