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An economic comparison of organic and conventional grain crops in a long-term agroecological research (LTAR) site in lowa

Published online by Cambridge University Press:  30 October 2009

Kathleen Delate ,
Michael Duffy ,
Craig Chase ,
Ann Holste ,
Heather Friedrich  and
Noreen Wantate
Kathleen Delate*
Affiliation:
Departments of Agronomy and Horticulture, 106 Horticulture Hall, Iowa State University, Ames, IA 50011–1100
Michael Duffy
Affiliation:
Department of Economics, Iowa State University, 478E Heady Hall, Ames, IA 50011–1100
Craig Chase
Affiliation:
Blackhawk County Extension Service, Iowa State University, Waterloo, IA.
Ann Holste
Affiliation:
Department of Economics, Iowa State University, 478E Heady Hall, Ames, IA 50011–1100
Heather Friedrich
Affiliation:
Departments of Agronomy and Horticulture, 106 Horticulture Hall, Iowa State University, Ames, IA 50011–1100
Noreen Wantate
Affiliation:
Departments of Agronomy and Horticulture, 106 Horticulture Hall, Iowa State University, Ames, IA 50011–1100
*
K. Delate ([email protected]).
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Abstract

Based on the interest of organic and conventional farmers in Iowa in long-term analysis of organic systems, the Neely-Kinyon Long-Term Agroecological Research (LTAR) site was established in 1998 to examine the agronomic and economic performance of conventional and organic systems, using certified organic production practices. We report the results of the economic analysis from 3 years of production (1999–2001). Using organic price premiums for organic crops, returns for corn within the organic corn-soybean-oat and corn-soybean-oat-alfalfa rotations were significantly greater than conventional corn-soybean rotation returns (US$126 ha−1). Com returns were not significantly different between the two organic rotations, at US$655 ha−1 and US$674 ha−1, respectively. Returns for soybean within the organic corn-soybean-oat and com-soybean-oat-alfalfa rotations were not significantly different, at US$1233 ha−1 and US$1326 ha−1, respectively. Organic soybean returns were significantly greater than conventional soybean crop returns (US$235 ha−1) in the corn-soybean rotation. Rotational 3-year average returns were US$180 ha−1 for the conventional corn-soybean rotation, compared to US$734 ha−1 for the organic corn-soybean-oat and US$739 ha−1 for the organic com-soybean-oat-alfalfa rotation.

Keywords

agricultural profitabilityconventional rotationseconomic returnslabor requirementsorganic rotationsproduction cost comparisons
Type
Research Article
Information
American Journal of Alternative Agriculture , Volume 18 , Issue 2 , June 2003 , pp. 59 - 69
Copyright
Copyright © Cambridge University Press 2003

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