[Dinitrogen fixation measurements in some legume crops grown under irrigated condition without bacteria inoculation using 15N]
1991
Kurdali, F. | Sharabi, N.E.
Dinitrogen fixation in some legume crops grown under irrigated conditions without Rhizobium inoculation was estimated using 15N labelled fertilizer method. Barley was used as reference crop. The highest percentage of N fixed occurred in faba bean (88 of total N), while the other crops: lentil 84, vetch 68;, common pea 67 and chick pea 57,. Morever, amount of N fixed were 171, 138, 100, 90 and 13 Kg. N respectively for faba bean, lentil, vetch, common pea and chick pea. This clearly indicates the importance of biological dinitrogen fixation in local legume crops nodulated with indigenous Rhizobium strains regarding to N-soil enrichment. Further investigations must be focused on the selection of both plant species and Rhizobium strains in order to obtain a good symbiotic system
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