Clarkson grain company Seeking 2022 Crop Non-GMO Yellow and White Corn John Merna 217-763-0085 John. Merna@ClarksonGrain.com SM-LA2017839 Clarkson grain company Seeking 2022 Crop Non - GMO Yellow and White Corn John Merna 217-763-0085 John . Merna@ClarksonGrain.com SM - LA2017839