Gobara L.A.M.Mahdi A.A.El TilibA.M.Abdel Magid H.M.2015-06-302015-06-301993East African Agricultural And Forestry Journal, 59 (no 1), p. 41-510012-8325http://localhost:8080/dspace/handle/0/1438Haricot bean CRlweolus vlllgaris L.) is grown under irrigation u a major cash crop in NorthSudan. Under field conditions. yields are usually low, ranging between 135O and 1450 kg/ha (Salih and Salih, 1985: FAO; 1986). Nitrogen fixation by haricot bean is generally low (Alexander,1971). However, the crop responds variably but positively to inoculation (Habish and Ishag. 1974: Graham md Halliday, 1977; Salih and Salih,1985).enhttp://creativecommons.org/licenses/by/3.0/Journal ContributionHaricot beansInoculationNitrogenPhosphorus fertilizers