Muhammad Zahid Ihsan (2015), Effect of different rates of nitrogen fertilizer on growth, seed yield, yield components and quality of canola (Brassica napus L.) under arid environment of Saudi Arabia; IJAAR, V6, N4, April, P268-274
https://innspub.net/effect-of-different-rates-of-nitrogen-fertilizer-on-growth-seed-yield-yield-components-and-quality-of-canola-brassica-napus-l-under-arid-environment-of-saudi-arabia-2/