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    Evaluation agronomic traits of canola (Brassica napus L.) under organic, bio- and chemical fertilizers
    (Dicle Üniversitesi, 2015) El Sabagh, Ayman; Omar, Abd Elhamid; Saneoka, Hirofoumi; Barutçular, Celaleddin
    This study was carried out to evaluate the effect different sources and rates of nitrogen fertilizers on yield traits of canola under Egyptian conditions. The experiment was conducted at the Experimental Farm of Faculty of Agriculture, Kafr El-Sheikh University, Egypt during the two successive winter season of 2004/2005 and 2005/2006. The experimental design was a strip - split plot with four replicates, Bio-fertilizer was in horizontal plots: without bio-fertilizer and with bio-fertilizer. Compost was in vertical plots: control, 6, 12 and 18 ton ha-1. Nitrogen was arranged in sub vertical plots: (control, 36, 72 and 108 kg N ha-1). Result revealed that, the bio fertilizer effects on seed yield and yield traits was significant as compare to control. Compost significantly improved yield and yield components of canola and the rate up to 18 ton ha-1 was more effective. Chemical nitrogen significantly improved on yield parameters and the rate of 108 kg ha-1 produced the highest seed yield and yield traits. The findings clearly showed that combined application of bio-fertilizer plus 108 kg N ha-1 adding with 18 ton compost ha-1 has resulted in obtaining highest seed yield and yield components. While, according to the results, bio-fertilizer could be increased the nitrogen uptake efficient and could be helpful with compost rate (<12 ton compost ha-1) or moderated chemical nitrogen (>72 kg N ha-1). So, using bio-fertilizer combined with organic and inorganic nitrogen could be improve seed yield and reducing the need for chemical fertilizers and that will lead to sustainable agriculture