The moduleing system introduced to growers 16 years ago is now used to temporarily store and handle 51 percent of the 1987/88 United States cotton crop. This system has brought about improved efficiencies and capacities of harvesting, handling and ginning systems.

Differences in management of modules from what growers are accustomed to have resulted in significant losses in lint quality and seed cotton. This paper reviews the management guidelines for choosing and using the module system for maximum benefit.