Author (s): M. N. Islam1, M. A. I. Sarker2, M. K. Islam3, S. Begum4 and M. A. Mannaf5
Abstract
An intercropping experiment comprising brinjal and chili was conducted during rabi seasons of 2007-08 and 2008-09 at Agricultural Research Station, Burirhat, Rangpur to find out appropriate planting geometry of brinjal for intercropping with chili for getting higher productivity. Four intercropping treatments viz. 100% chili
(broadcast) + 60% brinjal (100 cm × 75 cm), 100% chili (broadcast) + 45% brinjal (100 cm x 100 cm), 100% chili (broadcast) + 30% brinjal (100 cm × 150 cm), 100% chili (broadcast) + 20% brinjal (150 cm × 150 cm) were compared with sole brinjal (75 cm × 60 cm) and sole chili (broadcast). Averaged over years, yield of chili (14.09 t ha -1 and brinjal (45.05 t ha-1 ) were significantly the highest in sole crops. In intercropping system, chili yield decreased with increasing brinjal population but brinjal yield was directly related to its population The highest LER (1.48) and chili equivalent yield ((23.960 t ha-1) were recorded in 100% chili + 60% brinjal combination. The highest gross return ((Tk 479200 ha-1), gross margin (Tk. 394200 ha-1) and benefit cost ratio (5.64) were observed in the same combination. The results revealed that planting geometry of 100 cm × 75 cm for brinjal (to maintain 60% plant population) is suitable for intercropping with broadcast chili (100%) for getting maximum economic return.
Key words: Brinjal, Chili, Intercropping, Planting geometry
Full pdf: PDF
J. Expt. Biosci.1(2):51-55, July 2010
