Wednesday, April 8, 2009

Organic vs Conventional Production: Wisconsin Integrated Cropping Systems Trial


Researchers performing long-term agricultural studies in Wisconsin conclude that "...organic systems were more profitable than the Midwestern standards of continuous corn, no-till corn and soybeans, and intensively managed alfalfa" while "rotational grazing of dairy heifers was as profitable as the organic systems."

Further, "...organic forage crops can yield both as much dry matter as their conventional counterparts and with quality sufficient to produce as much milk..." and organic corn, soybean, and winter wheat "can produce 90% as well as their conventionally managed counterparts..." with weed control being a problem on average in one out of three years, and production being almost identical in two out of three years.

Original articles:

Chavas, J-P., Posner, J.L., Hedtcke, J.L. (2009). Organic and conventional production systems in the Wisconsin Integrated Cropping Systems Trial: II. Economic and risk analysis 1993-2006. Agronomy Journal 101:2, 288-295.

  • Currently free - future access via UW-Madison library online subscription

Posner, J.L., Baldock, J.O., Hedtcke, J.L. (2008). Organic and conventional production systems in the Wisconsin Integrated Cropping Systems Trials: I. Productivity 1990-2002. Agronomy Journal 100:2, 253-260.

  • UW-Madison access via library online subscription

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