Seed Growers: Check your residual N this spring
In July 2022, hybrid bromegrass (HBG) AC Success was seeded at Melfort, SK. Three different fertilizer sources of urea with urease and nitrification inhibitors were demonstrated, each applied at three different times (early fall, late fall and early spring). It was hot and dry at Melfort in 2023 and this likely impacted seed yield more than the application of any fertilizer. Plant available nutrients were determined, and the results suggest that if your forage grass seed fields were similarly dry in 2023, then good practice would be to check your fields for residual N this spring before you fertilize.