Asian Journal of Research in Botany

The experiment was carried out at the Horticulture Farm of Sher-e-Bangla Agricultural University, Dhaka during October 2017 to February 2018 to find out the growth, yield and economic benefit of garden pea as influenced by date of sowing and different levels of phosphorus. The research comprised of two factors: Factor A: Sowing time (three levels) as S₁=15 November, S₂=25 November, S₃=5 December and Factor B: Phosphorus fertilizer (four levels) as P₀= Control (No Phosphorus), P₁=50 kg P₂O₅/ha, P₂=75 kg P₂O₅/ha, P₃=100 kg P₂O₅/ha.  The experiment was set up in randomized complete block design (RCBD) with three replications. Sowing time and phosphorus influenced significantly on most of the parameters. Sowing time, S₂ (25 November) performed best in number of pods per plant (12.10), number of seeds per pod (4.62) and green pod yield (8.48 ton) per hectare and minimum in S₃ (5 December) treatment. Application of phosphorus, P₂ (75 kg P₂O₅) performed best in number of pods per plant (12.70), number of seeds per pod (4.90) and green pod yield (9.23 ton) per hectare and minimum in P₀ (control) treatment. Among the treatment combination S₂P₂ treatment gave the highest green pod yield (10.50 t/ha) and the lowest (4.48 t/ha) was obtained from S₃P₀ treatment. Combination of 25 November sowing with 75 kg P₂O₅was the best for growth, pod formation and seed formation of garden pea. From the economic point of view, the highest Benefit Cost Ratio (BCR) was (2.35) noted from S₂P₂ and the lowest (1.02) from S₃P₀. It was evident that the S₂P₂ gave the best performance for the growth, yield and economic benefit of garden pea. So, it was concluded that, the combination of 25 November sowing with 75 kg P₂O₅ can be used for commercial garden pea production.