I have a garden plot about 30x50 that I have to let go fallow this summer. I would like to plant a summer cover crop as a green manure. I am considering buckwheat. Does anyone have any better suggestions? I don't have a tractor so I can't plant sudan-soughum grass because I have no way to cut it. I live in zone 5. I need something to suppress weeds.
Thank you for your advice.