Bromegrass in Alaska. III. Effects of Planting Dates, and Time of Seeding-Year Harvest, on Seeding-Year Forage Yields and Quality, Winter Survival, and Second-Year Spring Forage Yield

摘要

Objectives of this study were to (a) determine yieldsud-- and quality of forage that could be obtained in theud-- seeding year from smooth bromegrass (Bromus inermis)ud-- seeded in spring without a cereal companion crop, andud-- (b) determine whether planting dates and date of theud-- seeding-year harvest influenced subsequent winter survivalud-- and forage yield in the following year.ud-- Bromegrass plots were harvested for forage yieldud-- once during the seeding year on several dates approximatelyud-- 10 days apart during August, September, andud-- early October; effects of those harvest dates were measuredud-- by comparing yields of all plots harvested on theud-- same date in the second year of growth. Five of the sixud-- experiments were conducted at the University ofud-- Alaska’s Matanuska Research Farm (61.6oN) nearud-- Palmer in southcentral Alaska, and the other was at theud-- Research Center in Palmer.