EFFECT OF TIME OF SOWING AND NiTROGEN ON GROWTH AND YIELD OF OKRA

Abstract

An experiment was conducted at the Farm of Sher-e-Bangla Agricultural University. Dhaka during the period from March to September 2007, to investigate the effect of different sowing time and levels of nitrogen on growth and yield of okra. The experiment consisted of two factors i, e Sowing time: four dates of sowing were considered 1 April, 2007 (S,). 16 April, 2007 (S 2 ). 1 May, 2007 (5 3) and 16 May. 2007 (S 4 ) and Levels of nitrogen: four different levels of nitrogen were comparcd 0 (N 0), 50 (N1 ), 100 (N 2 ) and 150 (N 3 ) kg N/ha respectively. The experiment was laid out in Randomized Complete Block Design RCBD? with three replications. In case of sowing time, the highest yield (8.96 t ha' ) was recorded from S 2 and the lowest (6.7 t ha") from S 4 . Incase of nitropn. the highest yield (9.44 t ha") was obtained from N 3 and the lowest (5.74 t ha - ) from N o. For combined effect, the maximum yield (9.20 t ha") was observed from the treatment combination of S 2N3 and the minimum (6.22 t ha") from S 4N0 . It may be concluded that 16Apr11 with 150 kg nitrogen can be used to obtain higher growth and yield of okra.