EFFECT OF VERMICOMPOST AND SPACING ON GROWTH AND YIELD OF SUMMER ONION

Abstract

An experiment was carried out at Horticultural Farm in Sher-e-Bangla Agricultural University, Dhaka-1207, Bangladesh to study the effect of vermicompost and spacing on growth and yield of summer onion. The experiment was carried out during summer season (March -May 2014). Two factors were used in the experiment viz. three levels of spacing; S 1 = 10 cm× 25 cm, S 2 = 15cm × 25cm and S 3 = 20 cm × 25 cm

and three levels of vermicompost; V 0

= 2 t ha -1 and

V 2 = 4 t ha -1 . The experiment was laid out in Randomized Complete Block Design with three replications and all together with 9 treatment combinations were used. The findings of the experiment revealed that the tallest plant (49.6cm) was found in S 1 V 2 ; the highest number of leaves plant ,the highest dry weight of leaves plant -1 (12.9 g), the highest bulb diameter (5.3cm), the highest fresh weight of bulb plant -1 = Control , V 1 -1 (44.6 g) and the highest dry weight of bulb plant

(12.6 g) was found in S 3 V 2 . But the highest length and diameter of bulb, highest fresh weight of bulb plant -1 and highest yield was found in. S 2 .In terms of economic return, results also revealed that gross return, net return and highest benefit cost ratio (BCR) was found from treatment combination of S 2

V 2 V 2