An experiment to determine the effects of different rates of seeding on stand establishment and early yield of an irrigated pasture mixture was conducted from 1953 to 1956. The seed mixture used, in parts by weight, was: smooth bromegrass 7, orchard grass 7, creeping red fescue 4; and white Dutch clover 2. Plots 6 ft. by 30 ft. were seeded at rates of 5, 10, 15, 20, 25, 30, 35, and 40 lbs. per acre, with a tractor-drawn, multiple V-belt seeder with double disk furrow openers spaced 7 in. apart. Herbage yields were determined by mowing a 3-ft. strip down the middle of each plot.Good stands were obtained from all rates of seeding, but there were differences in rate of establishment, early yield, and botanical composition of the swards. The heavier rates developed stands more quickly, yielded more in the year of seeding, and were less subject to weed encroachment than the lighter rates. Orchard grass dominated under the heavier seeding rates, resulting in an undesirable balance of species. Although satisfactory stands were obtained using light rates, moderate ones were considered more economical because they developed a sward more quickly and produced higher yields in the year of seeding.