Vol. 8, Issue 12 (2019)

The result of the study revealed that among the treatments, the treatment S3M1 (spacing 5mx4m and fertilizer levels 75kgN, 25kg P2O5, 25kg K2O) has recorded the maximum mean plant height (4.74 m) followed by the treatment S1M1 (spacing 10x5m and fertilizer level 75kgN, 25kg P2O5 & 25kg K2O) of 4.45m. The lowest mean plant height was recorded in the treatment S2M3 (spacing 6mx4m and fertilizer level 225kgN, 75kg P205 & 75kg K2O) of 3.72m. Maximum mean trunk girth was recorded in the treatment S3M1 (73.78)cm followed by the treatment S1M2 (spacing 10x5m and fertilizer level 150kgN, 50kg P205 & 50kg K2O) of 72.09cm. The lowest mean trunk girth was recorded in the treatment S2M3 (52.87cm). Maximum mean canopy height was recorded in the treatment S1M1 (4.28m) followed by the treatment S3M1 (4.19m). Minimum canopy height was recorded in S1M3 (spacing 10x5m and fertilizer level 225kgN, 75kg P205 & 75kg K2O) of 3.46m and which was on par with S2M2 (3.46). The maximum mean canopy diameter was found highest with the treatment S1M1 (6.51m) and followed by the treatment S1M2(10x5m spacing and 150kgN, 50kg P2O5 and 50kg K2O) of 5.95m. Minimum canopy diameter was recorded in S3M3 (spacing 5x4m and fertilizer level 225kgN, 75kg P205 & 75kg K2O) of 4.60m. The maximum mean canopy surface Area was registered with S1M1 (57.29 m2) followed by S1M2 (spacing 10x5m and 150kgN, 50kg P2O5, on 50kg K2O) of 50.07 m2 and minimum was recorded with the treatment S2M3 (spacing 6x4m and fertilizer level 225kgN, 75kg P2O5 & 75kg K2o) of 32.15m2.

The mean percentage of ground area covered by canopy was found highest in S3M1 (spacing 5x4m and fertilizer level 75kgN, 25kg P2O5 & 25kg K2O) of 218.80 and followed by S2M2 (spacing 6x4m and fertilizer level 150kg N, 50kg P2O5 & 50kg K2O) of 202.52. The lowest percent of ground area covered by canopy was observed in the treatment S1M3 (spacing 10x5m and fertilizer level 225kgN, 75kg P2O5 & 75kg K2O).