Q.15 I spread about 3,000 gallons per acre of cattle slurry to my silage fields in February/early March. How much nitrogen will this slurry contribute to my first cut of silage?

A. It is not possible to predict accurately the nitrogen contribution from slurry as slurry quality can vary. In general reduce fertilizer nitrogen by 20 to 25 units per acre where 3,000 gallons of slurry has been applied. Autumn applied slurry will contribute little or no nitrogen to the nitrogen requirements of first cut silage.