Mark Schonbeck has worked for 31 years as a researcher, consultant, and educator in sustainable and organic agriculture. He has participated in on-farm research into mulching, cover crops, minimum tillage, and nutrient management for organic vegetables. For many years, he has written for the Virginia Association for Biological Farming newsletter and served as their policy liaison to the National Sustainable Agriculture Coalition. He has also participated in different research projects to analyze, evaluate and improve federally funded organic and sustainable agriculture programs. In addition, Mark offers individual consulting in soil test interpretation, soil quality and nutrient management, crop rotation, cover cropping, and weed management.