Northeast Research and Demonstration Farm
Organic agriculture has become a major industry in the last decade, driven by increasing consumer demand, price premiums, and improving market opportunities. In 1977, a study was started at the Northeast Research and Demonstration Farm to demonstrate two alternative farming systems.
Iowa State University
Duffy, Michael D.; Liebman, Matthew Z.; and Pecinovsky, Kenneth T., "Organic vs. Conventional Farming Systems" (2003). Iowa State Research Farm Progress Reports. 1492.