EFFECT OF MANURE AND MULCHING ON GROWTH AND YIELD OF CARROT (Daucus carota L.)

Abstract

An experiment was conducted at the farm of Sher-e-Bangla Agricultural University, Dhaka during the period from November, 2017 to February, 2018. The experiment consisted of two factors, Factor A: four levels of manure, O 0 : no manure, O : Cowdung (20 t/ha), O 2 : Vermicompost (10 t/ha) and O : Cowdung (10 t/ha) + Vermicompost (5 t/ha) and Factor B: four mulches, M 3 0 : No mulch, M : Water hyacinth, M 2 : Black polythene and M : Wood ash, respectively. The experiment was laid out in Randomized Complete Block Design with three replications. Manure and mulching influenced significantly all the studied parameters. In case of manure the maximum plant height (44.55 cm) root length (14.74 cm), root diamter (4.12 cm), root weight (124.50 g), root yield (24.90 t/ha) and marketable root yield (23.85 t/ha) were recorded from O 2 3 treatment. In case of mulches, maximum plant height (44.81 cm), root length (15.21 cm), root diameter (3.92 cm), root weight (117.85 g), root yield (23.57 t/ha) and marketable root yield (21.95 t/ha) found in M treatment. The combined effect of highest root yield (29.07 t/ha) was obtained from O 2 and lowest (13.20 t/ha) from O 0 M (control). The highest gross return (Tk. 563200), net return (Tk. 446355) and BCR (4.82) were obtained from the treatment combination from O 2 M 2 0 where the lowest gross return (Tk. 207800), net return (Tk.112755) were obtained from O 0 M 0 and lowest BCR (1.67) from O 1 M . So, It can be concluded that 10 t/ha vermicompost with black polythene mulch was the best for carrot cultivation.

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