Response Of Haricot Bean To Inoculation, Nitrogen And Phosphorus Fertilization in Sudan

Abstract

Haricot 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).