IMPACT OF SPACING AND POTASSIUM ON YIELD AND YIELD ATTRIBUTES IN CHILLI

Abstract

An experiment was carried out in the Horticulture farm of Sher-e-Bangla Agricultural University, Dhaka, Bangladesh during the period from October 2017 to April 2018. The experiment consisted of two factors viz. 3 levels of plant spacing; S 1 : 45 cm × 30 cm; S 2 : 45 cm × 45 cm and S 3 :

45 cm × 60 cm and 4 levels of potassium; K 0 : 0 kg/ha (Control); K 1 : 60 kg K ha -1 ; K 2 : 90 kg K ha -1 and K 3 : 120 kg K ha -1 . The experiment was laid out in Randomized Complete Block Design with three replications. Data on different growth, yield contributing characters and yield at different days after transplanting (DAT) were recorded. Individually plant spacing and potassium had significant effect on growth, yield contributing parameters and yield parameters of chilli. Plant spacing, S 2 showed highest fruit yield (21.46 t ha -1 ). Regarding potassium application, K 2 gave highest fruit yield (20.37 t ha -1 ). Combined effect of plant spacing and potassium also showed significant effect on growth and yield of chilli. Results revealed that the highest fruit yield (24.62 t ha 1 ) was achieved from the treatment combination of S 2 was obtained from the treatment combination of S 1 K 2 K 0 where the lowest fruit yield plant (16.20 t ha -1 ). Regarding economic analysis, the highest BCR (3.52) was achieved from the treatment combination of S 2 with higher gross return (Tk. 369300 ha -1 ) and net return (Tk. 264462 ha ) where the lowest BCR (1.98) was observed from the treatment combination of S 3 . So, it can be concluded that spacing 45 cm × 45 cm with 90 kg K ha -1 K 0 -1 is suitable for chilli cultivation. - K 2