| − | ''''Nitrogen fixer'''' refers to [[plant]]s that host symbiotic [[microorganism]]s in nodules among their [[root]]s that "fix" [[nitrogen]] gas from the air by combining it with [[carbon]] to make [[amino acid]]s and related [[molecule]]s. Includes most members of the [[pea]] or [[bean]] family ([[Fabaceae]]), plus certain other species.<ref>[[Toby Hemenway]], "[[Gaia's Garden]] - A Guide to Home-Scale [[Permaculture]] ". 2nd. White River Junction, [[Vermont]]: Chelsea Green Publishing, 2009. Print. p. 287. [http://www.amazon.com/Gaias-Garden-Home-Scale-Permaculture-Edition/dp/1603580298 Amazon.com]</ref> | + | ''''Nitrogen fixer'''' refers to [[plant]]s that host symbiotic [[microorganism]]s in nodules among their [[root]]s that "fix" [[nitrogen]] gas from the air by combining it with [[carbon]] to make [[amino acid]]s and related [[molecule]]s. Includes most members of the [[pea]] or [[bean]] family ([[Fabaceae]]), plus certain other species.<ref>[[Toby Hemenway]], "[[Gaia's Garden]] - A Guide to Home-Scale [[Permaculture]] ". 2nd. White River Junction, [[Vermont]]: Chelsea Green Publishing, 2009. Print. p. 287. [https://www.amazon.com/Gaias-Garden-Home-Scale-Permaculture-Edition/dp/1603580298 Amazon.com]</ref> |