Florida Agricultural Experiment Stations of two acres each in 1951 and 1952. Finely ground calcic lime- stone was spread before the initial planting. Applications of superphosphate and muriate of potash were disked into the soil each year prior to seeding. A spring-tooth harrow with seeder attachment was used in 1950 to plant the clover and a seeder attachment mounted on a soil pulverizer was employed the following two years. Planting dates, seeding rates and fertilization practices for each year are shown in Table 1. TABLE 1.-PLANTING DATES, SEEDING RATES, AND FERTILIZATION PRACTICES FOR ALYCE CLOVER PASTURES, BY YEARS. Year S1950 1951 1952 Planting date ...............-.. .------. June 8 June 30 July 3 Seeding rate,* pounds per acre ......... 19 20 20 Calcic limestone, tons per acre ........... 1 Superphosphate,** pounds per acre .. 375 300 300 Muriate of potash,t pounds per acre 175 100 100 Seed inoculated. ** Eighteen percent used in 1960 and 20 percent used in 1951 and 1952. t Muriate of potash contained 50 percent KzO in 1950 and 60 percent KzO in 1951 and 1952. Grazing was started with lactating cows when the Alyce clover was 9 to 12 inches tall. The fields of clover were grazed rota- tionally and the cows kept on pasture continually except when removed for milking. Shade and fresh water were provided in each pasture and the animals were sprayed regularly to control flies. The cows were milked twice daily. Butterfat tests were made on an aliquot of one day's production of each cow at the begin- ning and at bi-weekly intervals during the experiment. The animals were weighed following the morning milking on three consecutive days at the beginning, the end, and at 28-day inter- vals during the experiment. A concentrate mixture containing 16 percent of crude protein was offered each cow at the rate of 1 pound per 3.5 pounds of 4 percent fat-corrected milk produced. The concentrate allow- ance for each cow was adjusted at bi-weekly intervals in accord- ance with her milk production. Concentrate mixtures, with