http://aces.nmsu.edu/pubs/_a/A129/ http://aces.nmsu.edu/pubs/_a/A129/ http://aces.nmsu.edu/pubs/_a/A129/ guide fertilizing soil with nitrogen Green peas natural nitrogen fixer beans are nitrogen fixers http://aces.nmsu.edu/pubs/_a/A129/ rhizobium nodules bind nitrogen to the soil convert it into ammonia aces.nmsu.edu nitrogen-fixers lowly peanut plant Nitrogen-fixing plants http://aces.nmsu.edu/pubs/_a/A129/ New Mexico State University: Nitrogen Fixation by Legumes http://aces.nmsu.edu/pubs/_a/A129/ nitrogen fixation New Mexico State University: Nitrogen Fixation by Legumes http://aces.nmsu.edu/pubs/_a/A129/ Nodules on http://aces.nmsu.edu/pubs/_a/A129/ lowly peanut plant adds nitrogen http://aces.nmsu.edu/pubs/_a/A129/ http://aces.nmsu.edu/pubs/_a/A129/ nitrogen fixation Nodules on