Editing Crop rotation (section)

=== Legumes ===

A great advantage of crop rotation comes from the interrelationship of [[Nitrogen fixation|nitrogen-fixing]] crops with nitrogen-demanding crops. Legumes, like alfalfa and clover, collect available nitrogen from the atmosphere and store it in nodules on their root structure.<ref name=lamb2010/> When the plant is harvested, the biomass of uncollected roots breaks down, making the stored nitrogen available to future crops.<ref name="RHS">{{cite web |url=https://www.rhs.org.uk/advice/profile?PID=373 |title=Green Manures |publisher=[[Royal Horticultural Society]] |access-date= 4 May 2016}}</ref>