Effect of different sources of nitrogen on onion verity "Baftaim S" yield and quality

Abstract

This study was conducted in winter season 2017 at the Experimental Farm of Shambat Research Station, Agriculture Research Corporation, Khartoum, Sudan, to investigate the effect of different source of nitrogen (Urea, NPK and Ammonium Sulfate) on yield and quality of onion variety “Baftaim (s)”. The experimental design was complete randomized block design arranged in split plot with three replications. The vegetative growth was evaluated as plant height, number of leaves and leaf length, the yield and quality as total, marketable yield and other bulb characteristics (bulb diameter, length, neck diameter, number of rings, total soluble solids and dry matter).The results reflect existed significant effects on number of leaves and plant height after three and four months from planting, respectively, by using NPK fertilizer and they gave highest bulb weight and bulb diameter. No significant ed of othdifference was noticer nitrogen sources and control.