Data collection and harvesting: In order to standardize, all plots were cut at 70 days after planting without data collection. To minimize the effect of border row, all samples were taken from the 2 x 3 m strip perpendicular to the row direction of each plot every 35 days for DMY 11 times by cutting height followed the treatments. Twelve plants were selected randomly from the central two rows and the following growth variables were recorded for each plot; height of plants, number of tillers.