Abstract :
Faba bean (Cv. Nubaria 1) was grown during the two winter seasons 2011/2012 and 2012/2013 in saline soil at North Sinai Governorate, Egypt, to study of the effect of potassium sulfate (48 % K2O) rates ( 50 - 75 and 100 kg K2O fed-1) , urea (46 % N) rates (10 - 20 -40 kg N fed-1) alone or in combination with bio-fertilizers (Bacillus circulans potassium solubilizing bacteria) + Rhizobium radiobacter nitrogen fixing bacteria strain inoculation, Salt Tolerant PGPR and sowing dates (25 October, 25 November and 25 December ) on faba bean productivity and the nutrients content in faba bean grains under saline soil conditions was conducted:Results showed that the greatest seeds yield was obtained with the rate of 40 kg N + 100 kg K2O fed-1 combined with bio-fertilizer and sown on date in 15 November in both seasons. Also, the rates of N, K and sowing date significantly increased P, K, Fe Mn and Zn content in faba bean seed in both seasons, while grain N content showed no significant differences in the first season. Soil contents of N, K, Mn and Zn were significantly affected by N, K and sowing date while the available P and Fe showed not significant differences in the first season. Sowing date (25 November) recorded the highest values of seeds protein content.It could be recommended that use of 20 kg N + 75 kg K2O fed-1 combined with bio- fertilizers and sowing date of 25 November gave the greatest seed yield and improved nutrients content in grains under saline soil conditions Keyword: saline soil, faba bean, bio-fertilizers and sowing dates.
