By Scout Nelson
Drought affects not just soil moisture but also how plants grow. Each forage species responds differently, and understanding these reactions helps protect pasture health and grazing decisions.
Some cool season grasses like Kentucky bluegrass go dormant during drought. While they may appear dead, they can recover when moisture returns. Dormant plants can be grazed lightly if enough stubble is left to protect regrowth areas.
Other grasses mature early during short wet periods followed by dry weather. This early seed formation leads to a fast quality decline. Producers should time grazing to capture these plants before they lose nutritional value.
Many perennials stop growing aboveground and shift energy belowground to roots and crowns. Grazing during this phase can harm recovery. Lowering stocking rates and rotating pastures help reduce stress and aid in regrowth.
Drought also opens the door for annual plants like kochia and ragweed to take over. These species grow quickly when perennial competition weakens. Though they offer some forage, they are short-lived and less nutritious.
Long-term drought may shift pasture composition. Drought-tolerant species like blue grama can replace sensitive grasses like big bluestem. Tracking changes using photo monitoring can guide grazing plans and long-term management adjustments.
"Recognizing what plants are doing during drought—and responding accordingly—can help producers protect their forage base and maintain herd performance through dry times."
Smart strategies include:
- Adjusting stocking rates when growth slows
- Timing grazing after rainfall
- Preserving stubble on dormant plants
- Tracking forage species over time
- Using monitoring tools to detect shifts
Knowing how plants respond to drought makes grazing more effective, supports plant recovery, and protects long-term productivity.
Photo Credit:gettyimages-zhuda
Categories: Nebraska, Crops, Weather