The Pleasant Valley onion district in Scott county, Iowa, presents a striking example of crop specialization and intensive culture in contrast to the typical corn belt farming which prevails in this state. Approximately 500 acres are devoted exclusively to onions on a continuous crop basis, and much of the land has been devoted to this particular crop for decades. This is one of the oldest agricultural regions of the state.
In the following pages is presented a summary of a farm survey* of the onion industry of this region, including a study of the cultural practices, the problems of disease and insect control, cost of production, marketing, tenure and the seasonal distribution of labor.
Erwin, A. T. and Harter, W. L.
"The onion industry in Pleasant Valley, Iowa,"
Bulletin: Vol. 18
, Article 1.
Available at: https://lib.dr.iastate.edu/bulletin/vol18/iss225/1