Abstract
This study was conducted during winter season of 2021-2022 at the Field Crops research station - College of Agriculture - University of Anbar to study the response of growth characteristics and forage yield for some oats cultivars under the influence of nitrogen spraying and cutting times. A split-split plots arrangement according to randomized complete block design at three replications was used. The results showed that the nitrogen spraying had a significant effect on all studied traits, as the spraying of nitrogen at a concentration of 6 g N L-1 recorded the highest means of plant height (63.03 cm), stem diameter, number of leaves per plant and green forage yield (64.43 ton ha-1). The mowing dates had a significant effect on the studied traits, as the mowing date after 60 days of planting achieved the highest means of plant height (74.34 cm) and green forage yield (73.87 ton ha-1). The cultivars was significantly differed in the studied traits, as the Carlop cultivar gave a highest green forage yield (58.11 tons ha-1). The di-interactions and tri-interaction between studied factors had a significant effect on the most studied traits.
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