This industry comprises establishments primarily engaged in growing corn (except sweet corn) and/or producing corn seeds. Cross-References. Establishments primarily engaged in-- ? Growing sweet corn--are classified in U.S. Industry 111219, Other Vegetable (except Potato) and Melon Farming; and ? Growing corn in combination with oilseed(s) with the corn or oilseed(s) not accounting for one-half of the establishment's production (value of crops for market)--are classified in U.S. Industry 111191, Oilseed and Grain Combination Farming.