Effect of Different Rates of Nitrogen and Phosphorus Application on the Growth and Yield of BARI Tomato-2 (Ratan) ( Solanum lycopersicum L.)

Abstract

The experiment was conducted at the Research Farm of Sher-e-Bangla Agricultural University, Dhaka, to evaluate the effect of nitrogen (N) and phosphorous (P) on the growth and yield component of BARI tomato-2. The experiment was laid out in a Randomized Complete Block Design (RCBD) with three replications of each fertilizers treatment combination. The treatments used were: four levels of nitrogen as N0: O kg N/ha, N100: 100 kg N/ha, N150: 150 kg N/ha and N200: 200 kg N/ha and four levels of phosphorus as P0: 0 kg P2O5/ha, P50: 50 kg P2O5/ha, P100: 100 kg P2O5/ha and p150: 150 kg P2O5 /ha with 16 treatment combinations. Yield and yield contributing characters were recorded. Plant height , number of branches per plant, number of flowers per plant, number of fruits per plant, fruit weight per plant and fruit yield increased significantly with increasing N level up to 200 kg N/ha, whereas fruit size (length) increased significantly up to 150 kg N/ha. All these parameters also increased significantly with increasing the level of P up to 150 kg P2O5/ha. However, the treatment combination N200P150 showed the maximum plant height at harvest (93.62 cm). The treatment combination N200P100 produced the maximum number of flowers per plant (49.86), number of fruits per cluster (3.99), number of fruits per plant (38.30) and fruit yield (89.93 t/ha). So, it can conclude from this study that 200 kg N/ha and 150 kg P2O5/ha doses performed best in case of growth and yield of Tomato