Effect of Nitrogen and Potassium Fertilization on Seed Production of Onion (Allium cepa L.) Improved Giza 6Cultivar
This study was carried out at the Experimental Farm, Faculty of Agriculture, Sohag University, Sohag, Egypt during two successive winter seasons 2010/2011 and 2011/2012 to investigate the effect of nitrogen and potassium fertilization on onion seed production Improved Giza 6 cultivar. Three nitrogen rates (50, 100 and 150 kg feddan , one feddan= 0.42 ha) and three potassium rates (40, ... إقراء المزيد