Don began working with soil bio-stimulants in 1978. Neighbors began to take notice of Don’s fields and he explained that balanced soils lead to increased yields of nutrient dense crops. He embraced the role of serving growers, which led the young couple to establish Ag Connection Sales, Inc. (ACS) in January 1984. Over the next decade, their business of marketing bio-stimulants and liquid fertilizers expanded over the Midwest from Texas to North Dakota. By 1998, ACS was conducting research, manufacturing, and distributing Assure Crop, their formulations of quality liquid crop nutrition. As of January 2010, their Assure Crop name was formally trademarked Sure Crop, a division of Ag Connection Sales, Inc.

Sadly, on December 6th, 2018, Don Schurman passed away. His discovery of using less fertilizer, balancing soil nutrient levels, and using liquid fertilizer paved the way for healthier, more productive soils. It also ignited a passion within him to help others achieve success with their own crop production goals and to see numerous farmers’ crops thriving.