Forage alone often fails to meet the full mineral requirements of beef cattle during the grazing season, particularly for essential trace elements like selenium, cobalt, and iodine, which are commonly deficient in pasture plants. The widespread use of macronutrient fertilizers (N, P, K) can increase forage yield without improving trace mineral levels, potentially worsening imbalances. To address this, the current study analyzes the seasonal and regional variation in forage nutrient content across Alberta, aiming to support more informed and sustainable mineral supplementation decisions for cattle producers… read the full report here: Grass Project_Manuscript FINAL_July 30 2025