The experimental sites were located on the Fort Hays Kansas State College farm about 2.5 miles west of Hays. Three plots were staked out in May, 1951, in relatively6 pure stands of each of the grasses to be studies. Two plots consisted of 9 square meter quadrats each and one contained 5 quadrats. The short grass area had not been grazed for about 10 years and the western wheat grass and big bluestem relict areas had never been grazed by domestic livestock. The control quadrats were clipped about 0.5 inch above the soil in the late all of each year in order to obtain yield
