This study was conducted during winter seasons of (2009-2010) and (2010-2011) at Meet Louza Village, Mansoura Province, Dakahlia Governorate, Egypt on a silty clay soil to find out the residual effect rice N-biofertilization on the next wheat crop (Triticum aestivum L. c.v. sakha 93).   Biofertilization 8 treatments involving inoculums of Azolla (Azl), Azospirillum (Azs), Azotobacter (Azt), and Cyanobacreria (Cyn) as well as mixtures (Azl + Azs), (Azl + Azt), (Azs + Azt) and (Cyn + Azt) which take the same location with the same layout of the experimental field for the previous crop (rice), soil N- fertilization (4 treatments of control, 12.5 %, 18.75 and 25 % of N-recommended level 75 kg N fed^-1 as urea) were tasted in a split plot design with three replicates. The most important finding could be summarized as follows: Treatment of 25 % N-level led to highest increases for plant height, grain yield, chlorophyll (a) and (b) content and the highest values were (101.27cm, 1.57 Mg fed^-1, 13.55 mg g^-1 f.w and 8.95 mg g^-1 f.w) for the previous parameters, respectively. Although, the highest straw yield, N, P, K, Fe, Mn and Zn uptake by grains of (1.31 Mg fed^-1, 26.17, 4.27, 4.67 kg fed^-1, 106.23, 47.91 and 48.33 g fed^-1), were recorded at 18.75 % N-level, respectively. The highest mean value of caroteniods (2.75 mg g^-1 f.w). achieved at, control treatment. Inoculation of (Azl) gave maximum plant height and Mn-uptake of ((98.16 cm and 47.47 g fed^-1), respectively. The highest grain, straw yields, caroteniods, N, K, Fe and Zn uptake were due to (Azs) Inoculation which were (1.84, 1.40 Mg fed^-1, 3.48 mg g^-1f.w, 27.13, 5.21 kg fed^-1, 18.87 and 49.65 g fed^-1) respectively, the highest P-uptake of (4.32 kg fed^-1) occurred with (Azt). While (Azs+Azt) revealed the highest values (15.05 and 10.25 mg g^-1f.w) for chlorophyll (a) and (b) content, respectively.   The combination of 25 % N-level with (Azl, Azs, Cyn, Azs +Azt, Azs and Cyn + Azt) inoculations, gave superiority plant height (106.38 cm), grain yield (1.95 Mg fed^-1, chlorophyll (a), (b) (15.52, 13.39 mg g^-1 f.w), Fe and Mn uptake of (137.32 and 55.49 g fed^-1), respectively. The superiority average values of straw yield (1.53 Mg fed^-1), N and Zn uptake (32.01 kg fed^-1and 57.01 g fed^-1), release from organic and inorganic (30.25ppm), N-uptake % (67.92%) and N-recovery % (61.66%) occurred with combination of (18.75%N-level + (Azl+Azs)),  but 18.75 % N-level combined with (Azl) and (Azs) respectively gave highest P-uptake of (4.90kg fed^-1) and K-uptake of (5.88 kg fed^-1). The uppermost caroteniods (3.71 mg g^-1f.w) occurred with   the combination of (12.5% N-level + Azs) and The superiority net return (3060 £.L. fed^-1.) of wheat crop, was given by  combination of (25 % N-level + Azs).