Effects of Rhizobium Inoculation and Urea Fertilization on Faba Bean ( Vicia faba L.) Production in a Semi-Desert Zone

摘要

A field experiment was carried out in season 2007/08 in two sites in a semi-arid zone in the Northern Stateof Sudan to study the effects of Rhizobium inoculation and urea fertilization on the symbiotic properties andyield of faba bean cultivar seleim (SM-L).Rhizobium inoculation individually significantly (P≤0.05) increasedshoot and nodule dry weight, nitrogen content in shoot and yield. Inoculation with Rhizobium with addition ofurea as starter dose (20 kg N/ha) increased number of nodules, shoot and root dry weights, nitrogen content andyield. Urea fertilization significantly (P≤0.05) increased shoot dry weight, number of pods and yield. The resultsof the study indicated the efficiency of using biofertilizer based on Rhizobium isolate ENRRI 9 in increasing theyield of faba bean in the studied sites in a semi-desert zone in Sudan.