This project explores a new way for Wisconsin dairy farmers to grow two important forage crops, corn silage and alfalfa, in the same field at the same time. Traditionally, farmers grow corn and then spend a separate season establishing alfalfa, which can delay forage production and increase costs. Researchers will test whether newer “short-stature” corn hybrids allow enough sunlight to reach young alfalfa plants growing beneath them, helping both crops succeed together. The goal is to determine whether this system can produce more total forage per acre while making better use of land, labor, and equipment.

For dairy farmers, the potential benefits are significant. If successful, the system could increase forage production, improve farm profitability, and provide more continuous ground cover throughout the year. Continuous cover can help reduce soil erosion, improve soil health, retain nutrients, and lessen the risk of nitrate losses to waterways. The research will also evaluate the economic returns of the system so farmers can better understand whether adopting short corn hybrids is a practical investment. Ultimately, the project aims to provide producers with science-based recommendations that help them grow high-quality feed more efficiently while supporting long-term sustainability of Wisconsin dairy farms.