Research Update: Evaluating Different Types of Swine Manure for Hybrid Rye Production

In fall 2021, we started a field trial at the West Central Research and Outreach Center (WCROC) in Morris, MN. We applied five different rates of each type of manure in early September to supply zero to 240 pounds of first-year available nitrogen per acre. We assumed 75% of the total nitrogen would be available the first year for the liquid and solid swine manure and 40% would be available from the composted swine manure. After application, we incorporated the manure within 12 hours and planted hybrid rye within the next few days. The following summer, we harvested the rye and analyzed the grain for crude protein.