Effects of Row Space and Seeding Rate on Yields of Fresh Forage and Seeds of Bromus cartharticus cv.Jiangxia

The effects of row space and seeding rate on yield of fresh forage and seeds of Bromus cartharticusVahl.cv.Jiangxia by using quadratic general rotary design were studied in Hubei Province,China.The results showed that the spacing and seeding rate significantly affected the fresh yield and it showed the trend of increasing first and then decreasing with the increasing of seeding rate within a certain range.But the fresh yield was significantly negatively correlated with the row space.Seed production was mainly affected by the row space,which was decreased with the increasing of row space.The fresh yield reached the highest under the row space of 20 cm and seeding rate of 22.5to 30.0kg/ha.For seed production,the proper row space and seeding rate were 20 to 30cm and 15.0to 30.0kg/ha respectively.