Evaluation of effect of the organic fertilizer prepared from Azolla primaeva and inoculation with Rhizobium bacteria in some growth characteristics of the vicia faba plant grown in gypsiferous soil

A field experiment was carried out in a randomized complete block design (R.C.B.D) to study the effect of inoculation with R. leguminosarum at two levels (with and without inoculation) The compost made from azolla plant interaction between them efficiency root nodule formation growth yield faba bean grown gypsiferous soil after being isolated identificated by phenotypic, biochemical molecular methods, results showed that there significant increase all characteristics fertilized inoculated treatments compared non-inoculated treatment, as outperformed treatment on control traits, significantly superior Rhizobuim studied traits gave highest values averages were number nodules, their wet weight bacteria surrounding roots (15,000, 2.274 6.400 x 104), height dry vegetative part (39,000, 24.995), (gm plant-1 cm ) concentration nitrogen, phosphorous potassium (1487, 238 1819) ppm respectively.