Abstract
The effects of several environmental factors on the abundance of peanut rhizobia ( Rhizobium spp) were studied in 66 soil samples collected from different locations in Iraq from September 1979 to July 1980. More than 72% of the samples contained this strain of Rhizobium. Samples free of peanut rhizobia were obtained from southern and central regions during winter and summer. Both occurrence and numbers of Rhizobium spp were more pronounced under legumes. Soil conditions suitable for the survival of Rhizobium spp were: organic C, 1% or less; electrical conductivity, 2 mmhos cm −1 or less. pH, 7.6–8.1; lime, 20–30% and cation-exchange capacity, 20–30 m-equiv 100 g −1 soil.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
