Effect Of Spacing And Fertilizer On The Growth And Yield Of Onion

Abstract The experiment was conducted at the On-Farm Research Division OFRD Agricultural Research Station Bangladesh Agricultural Research Institute BARI Daulatpur Khulna to study the effects of spacing and fertilizer on the growth and yield of onion. Three spacing viz. 10 10 cm 15 10 cm and 15 15 cm with three fertilizer combinations viz. soil test based fertilizer dose STB integrated plant nutrient system IPNS based fertilizer dose and farmers practice were studied on the growth and yield of onion. The two factor experiment was laid out in a randomized complete block design RCBD with three replications. The size of unit plot was 1.5 1.2 m. The results demonstrated that plant spacing had significant effects on growth yield components and yield of onion. Different fertilizers exhibited significant variation in respect of individual bulb weight bulb diameter and yield. The maximum bulb weight and yield were recorded in IPNS based fertilizer dose while the combined effect of fertilizer and plant spacing had significant effect on growth and yield of onion. The highest yield was obtained from the spacing of 15 10 cm coupled with IPNS based fertilizer dose and the lowest yield was found in 15 15 cm spacing with farmers practice.