Kansas State University research looking into the efficacy of alternative prescribed burning dates of the Flint Hills looks promising. | Download this photo. K-State scientist: ‘We have only begun to tap the potential’ MANHATTAN, Kan. – For years, ranchers on the High Plains have used controlled burning, traditionally during the spring, to impede the growth of invasive plants on rangelands. In many ways, it’s been effective. The practice helps control weedy plants that rob…