Soil Factors Limiting Nodulation and Nitrogen Fixation in Purshia

  • Timothy L. Righetti
  • Donald N. Munns


Approximately 50 species in 10 genera capable of actinomyceteinduced nodulation and nitrogen fixation are found in the western United States. Their ecological importance has recently been reviewed (Klemmedson, 1979). Nitrogen fixation may enhance colonization of natural or man-induced disturbances. Some of these genera may have applications in revegetation and rehabilitation of drastically nitrogen deficient disturbances brought on by increasing energy and mineral demands. There is also interest in forestry applications utilizing nitrogen-fixing trees such as alder, or a nitrogen-fixing understory (Gordon and Dawson, 1979).


Nitrogen Fixation Ethylene Production Nodule Number Subsurface Soil Nodule Mass 
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Copyright information

© Plenum Press, New York 1981

Authors and Affiliations

  • Timothy L. Righetti
    • 1
  • Donald N. Munns
    • 1
  1. 1.Land, Air and Water ResourcesUniversity of CaliforniaDavisUSA

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