GROWTH AND YIELD OF OKRA AS INFLUENCED BY NITROGEN AND PHOSPHORUS

Abstract

The experiment was conducted at the Horticulture Farm of Sher-e-Bangla Agricultural University, Dhaka during the period from April to August 2012. BARI Dherosh-1 was used as test crop in this experiment. The experiment consisted of two factors viz., Nitrogen fertilizer as N 130 kg N/ha; and Phosphorus fertilizer as P P 2 O 5 0 :

0, P 0 : 1

: 0, N

1 : 70, P

110, N 2 :

2 :

120 and N 80 and P /ha respectively. The experiment was laid out in Randomized Complete Block Design with three replications. All the parameters were significantly influenced by different levels of nitrogen and phosphorus. Due to the effect of nitrogen, the

highest yield (16.40 t/ha) was observed from N and the lowest yield (12.30 t/ha) from N 0 2 . In case of phosphorus, the highest yield (16.95 t/ha) was found from P 2 and the lowest yield (11.20 t/ha) from P . For combined effect, the highest yield (19.76 t/ha) was found from N 2 P 2 0 and the lowest yield (10.74 t/ha) from N 0 P 0 . The highest benefit cost ratio (2.17) was noted from N and the lowest (1.25) from N 0 P . From growth and yield and also economic point of view, it is apparent that the combination of N 0 2 P 2 was suitable for okra cultivation.