History of Cooperative Soybean Processing in the United
- There are now seven cooperative soybean crushing plants in Iowa, located at Sheldon, Dike, Manly, Ralston, West Bend, Eagle Grove, and Martelle Soybean Digest. 1945. Feb. p. 13. They started for two main reasons 1 During and immediately after World War II, it was almost impossible for soybean growers to obtain soybean meal, either as meal or in the form of mixed feeds.