The main objective of this study has been the determination of the crop production program which maximizes total profit for different soil areas in Iowa and for different levels of resource ownership. The analysis was carried out by the use of the Simplex method of the linear programming technique. Accordingly, an optimum (revenue maximizing) crop program was determined for 14 main soil associations. Six resource quantities were considered for each soil association, and the analysis was repeated for a second price period. In all, 168 situations were considered. Only one production technique was used in the analysis. That is, only one combination of resource inputs per unit of product was considered for each crop and each area. The analytical method lends itself well to considering several production techniques. But, the lack of yield data reflecting the results of different techniques accurately made this extension inadvisable.
Bowlen, Bernard and Heady, Earl O.
"Optimum combinations of competitive crops at particular locations (Application of linear programming: 1),"
Research Bulletin (Iowa Agriculture and Home Economics Experiment Station): Vol. 32
, Article 1.
Available at: https://lib.dr.iastate.edu/researchbulletin/vol32/iss426/1