“…Many research peppers discussed the role of dual inoculation of rhizobium and mycorrhiza as biofertilizers for leguminous crops. Generally, they found that the dual inoculation of rhyzobium and mycorrhiza has many beneficial effects on the leguminous crops such as increasing of the bean plants ability to establish more successful legume-rhizobium symbiosis as well as increasing the mycorrhiza colonization (Badr El-Din and Moawad, 1988;Abd-Alla et al, 2014), decreasing the used quantities of P and/or N chemical fertilizers up to 50% (Ahmed et al, 2006;Talaat and Abdallah, 2008;Dar et al, 2015;Aboutalebian and Malmir, 2017); or may be save more N fertilization under other circumstances (Soares et al, 2016), enhancing the host plants performance in both of vegetative growth or yield and its components traits (Daneils-Hylton and Ahmad, 1994;Geneva et al, 2006;Talaat and Abdallah, 2008;Arumugam et al, 2010;Bhattachaerjee andSharma, 2012 andMoradi et al, 2013) and also using for controlling the soil porn diseases (Dar et al, 1997 andAysan andDemir, 2009). The aim of this investigation is to study the effect of inoculation with rhizobium (R), mycorrhiza (M) and their co-inoculation (RM) in combination with 50% of the recommended doses of N and P mineral fertilization (50% NP ) on the vegetative growth and yield and its components, and leaves chemical composition of snap bean cvs.…”