By Jamie Martin
An innovative on-farm research project is exploring whether adding nitrogen to rye cover crops in early spring can create benefits for both soil health and corn production.
The idea originated from a field observation made by farmers Jim Stute and Tom Novak. While monitoring their fields, they noticed scattered areas where rye plants were taller and darker green than the surrounding crop. The unusual growth pattern appeared to be connected to deer urine, a natural source of nitrogen.
The observation suggested that nitrogen availability could be limiting rye growth in some situations, particularly after soybean production. This led the farmers to wonder whether intentionally applying nitrogen could produce larger and healthier rye stands.
Increasing rye biomass has become an important goal for many growers using cover crops. Larger rye plants can provide stronger weed suppression, help protect soil from erosion, improve soil structure, and contribute to additional organic matter.
To test the concept, Stute secured funding through the 2025 Nitrogen Optimization Pilot Program. The project is designed to examine how spring nitrogen applications affect rye growth and the performance of the following corn crop.
A key question being investigated is whether nitrogen applied to rye can influence the optimal nitrogen fertilizer rate needed for no-till corn. Researchers and farmers are also interested in learning if the strategy can reduce the small yield decreases that are sometimes observed when corn follows rye.
Cover crops are widely recognized for their environmental and agronomic benefits, but farmers continue to seek management practices that deliver the greatest return on investment. Understanding the interaction between rye growth and nitrogen availability could help improve both crop performance and nutrient efficiency.
The research is taking place under real farming conditions, providing practical insights that can be directly applied by growers. On-farm studies allow producers to evaluate management practices in the environments where they are most likely to be used.
Stute has participated in several Nitrogen Optimization Pilot Program projects and strongly supports the farmer-driven research model. He believes the program helps producers investigate important questions while providing assistance for the additional work required to conduct field trials.
The hands-on nature of the program encourages farmers to pay close attention to trial results and gather high-quality information throughout the growing season. This leads to valuable data that can support future management decisions.
Another important aspect of the project is collaboration. Stute believes collecting information from farms located in different regions and operating on different soil types creates a stronger foundation for future recommendations.
“You get paid to experiment on your own farm. When you’re compensated for doing it, you pay much closer attention to it and make sure to complete it, even with so many competing tasks during the busy fall season,” said Jim. “Getting data from multiple regions, farms, and soil types is important for getting better N rate recommendations and farmer acceptance.”
Results gathered from multiple farms can help researchers better understand how nitrogen management practices perform across a range of environments. This broad dataset can improve confidence in recommendations and increase adoption among farmers.
As agriculture continues to focus on efficiency and sustainability, projects like this demonstrate the value of combining farmer observations with structured research. The study may help identify new ways to strengthen the performance of cover crops while improving nutrient management and corn production outcomes.
The project also highlights how simple field observations can inspire meaningful research. By turning everyday farming experiences into scientific investigations, producers can generate practical knowledge that benefits the broader agricultural community.
Categories: National