By Andi Anderson
Spring may tempt farmers to start grazing early, especially when pastures appear green. However, this early green growth can be misleading. It often signals plant stress rather than healthy regrowth, especially in areas affected by drought or overgrazed last fall.
Overgrazing in the fall removes too many photosynthesizing leaves. Without these leaves, plants can’t store energy for winter survival. As a result, they enter spring weak, with limited energy and shallow root systems. These pastures need more time to recover before grazing begins.
Lush spring grass may be appealing, but it lacks fibre. Livestock need a balance of fibre, protein, and carbohydrates for healthy digestion. To support rumen function, let pastures mature before grazing or offer supplemental hay to improve dietary balance.
Leaving three to four inches of residual grass after grazing helps plants continue photosynthesis. This supports energy production, strengthens roots, and makes plants more resistant to weather stress.
Healthy root systems also boost water and nutrient uptake, improving forage growth and pasture resilience.
Pastures with good residual may look less green early on but offer a mix of new and dry forage. This balance benefits livestock digestion and overall pasture health.
Soil health also improves with proper grazing. Residual grass protects the soil from compaction and helps water soak in better. Sandy soils may need longer rest periods, while clay soils require careful moisture and compaction management.
To avoid damage, begin grazing cool-season grasses when they reach 8 to 10 inches. Follow the “graze half, leave half” rule and rotate animals often. Once the first grazed fields recover, restart your rotation and stockpile the rest for later.
Also, consider using high-magnesium mineral supplements in early spring, especially in fields treated with nitrogen or potassium. Low magnesium can lead to grass tetany in livestock.
Smart grazing ensures strong pastures and healthy livestock all season long.
Photo Credit: gettyimages-ahavelaar
Categories: Ohio, General