Evaluating field demonstration programs in Iowa : a progress report from crop years 1990 and 1991 /Author: Contant, Cheryl Katherine.
Publisher: Ames, Iowa : Iowa State University, University Extension,
Date: 1995. This title can be found in 2 Iowa libraries.
Integrated Farm Management Demonstration Program : 1988 progress report /Author: Miller, Gerald A.
Publisher: Ames, Iowa : Iowa Cooperative Extension Service, Iowa Agriculture and Home Economics Experiment Station, Iowa State University,
Date: [1988] This title can be found in 1 Iowa libraries.
Southeastern Iowa Conservation Tillage Research and Demonstration Project.Publisher: [S.l. : s.n.,
Date: 1987] This title can be found in 2 Iowa libraries.
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