Abstract :
The study was conducted in the farm of Faculty of Agriculture, Demo, Fayoum, Egypt. Thesoil was of loamy- sand type. During 2006/2007 and 2007/2008 season, using a split plot arrangementin randomized complete block design with three replicates, the work was done to determine the effect ofadding biofertilizers (Azotobacter + Azospirillum, free nitrogen fixers and Trichoderma a phosphatesolubilizing fungi) in combinations with mineral N fertilizer with either recommended dose (N1) or half of canola lines were significantly different in plant height, number of branches, number of pods andseed yield /plant. L6 surpassed H2 line for previous traits, in addition to insignificantly higher values ofthe other traits; T10, T11 and T12 showed superiority and high productivity with saving half of the mineral Nrecommended dose. For interaction; H2T10, was the best in all traits except for plant height, protein andoil percentages. H2T4, L6T6 and L6T8, for all traits except for seed index and oil percentage. The highestproductivity recoded by H2T10 (N2+Trichoderma +Azotobacter), H2T11 (N2 + Azotobacter+ Azospirllum) and L6T8 (N2+ Azotobacter) which outyielded their corresponding control by 39.3, 31.8 and 23.0% aresult of using only 50% of the recommended dose of N-fertilizer (N2). The latter combination was alsosuperior in protein content (26.5%). These three combinations could be recommended as alternativemethod for canola fertilization, where they had economic and safely advantages. Keywords: Canola, Lines, Yield, Azotobacter, Azospirillum and Trichoderma
