Corn response to sulfur application in Central and Western North Dakota

This study aims to evaluate corn grain yield response to sulfur application in no-till systems in different soils across Central and Western North Dakota. This trial was carried out in four no-till locations: Minot (NCREC), Carrington (CREC), Dickinson (DREC), and Hettinger (HREC). Five sulfur rates were applied in a randomized complete block design with four replications. Rates of 0, 10, 20, 30, and 40 lbs S/ac using ammonium sulfate (AMS) as a sulfur source were applied 4” in the ground using a no-till plot drill just prior to planting. Plot dimensions were 10 ft wide by 22 ft long. The center two rows were harvested with a small plot combine with an on-board weigh system. The results in 2025 at Hettinger showed no statistical difference in yield among any of the sulfur treatments and the untreated check.