– Christine Gelley, Noble County OSU Extension Educator (originally published in The Ohio Cattleman)
During my graduate program at The University of Tennessee there was a defined interest in utilizing warm-season perennial grasses as grazing pasture for beef cattle. One of the greatest influences for this interest is persistence during high heat and drought tolerance. The same could be applied for Ohio.
Although our number of growing degree days are fewer than producers have in the South, we are still capable of incorporating warm-season perennials into our grazing systems. We also experience periods of high heat and drought. Our typical sources of grazing pastures are cool-season grasses (ex: tall fescue, orchardgrass, ryegrass, timothy) and legumes (ex: white clover, red clover, alfalfa), which are much less hardy than the grasses discussed here. Part of the reason is the way the plants photosynthesize (a.k.a. turn light into food), how they utilize water in the process, and differences in structural growth. Warm-season grasses are more efficient photosynthesizers, however the forage they produce in the process is of lesser nutritive value than cool-season grasses.
The tradeoff can be worthwhile in times of stress, on marginal sites, remediation, and for wildlife enthusiasts. Forage of less than ideal nutritive value that is available is more valuable to grazing livestock than no forage at all. The greatest advantages of including warm-season perennials in a grazing system are the ability to Continue reading Management Considerations for Warm-Season Perennials