“EFFECT OF SPACING AND LEVELS OF NITROGEN ON GROWTH ANDBULB YIELD OF RED ONION (ALLIUM CEPA VAR. ASCALONICUM”. 2016. INTERNATIONAL JOURNAL OF ADVANCED RESEARCH AND REVIEW (IJARR) 1 (3): 39-50. https://www.ijarr.org/index.php/ijarr/article/view/166.