Impact of nitrogen and phosphorus on the growth and yield of okra [<i>Abelmoschus esculentus</i> (L.) Moench] in hill slope condition

Abstract

An experiment was conducted at the Hill Agricultural Research Station, Khagrachari from June to November 2004 to find out the effect of nitrogen (60, 80, 100 and 120 kg/ha) and phosphorus (80, 100 and 120 kg/ha) on the growth and yield of okra in hill slope condition during rainy season. The highest yield (16.73 t/ha) was obtained from 100 kg N/ha, which was statistically identical to 120 kg per hectare. In case of phosphorus, the highest yield of 15.77 t/ha was obtained from 120 kg P₂O₅/ha and was closely followed by the dose of 100 kg P/ha (4.73 t/ha). Considering the treatment combinations, the highest yield (19.22 t/ha) was produced by N₁₀₀P₁₂₀ and there were no significant variations among N₁₀₀P₁₀₀, N₁₂₀P₁₀₀ and N₁₂₀P₁₂₀. The highest gross return (Tk.193200) and net return (Tk.146l40) were obtained from N₁₀₀P₁₂₀. The BCR was also higher (4.08) under the same treatment combination.

Key Words: Nitrogen; phosphorus; okra growth; okra yield.

DOI: 10.3329/bjar.v34i4.5846

Bangladesh J. Agril. Res. 34(4) : 713-722, December 2009