nitrogen fixers ... roots excretions benifical?
My question concerns growing nitrogen fixings plants. I have been given conflicting info as to wheter or not 'living' nitrogen fixing plants benifit the soil. I do understand that with the pea vine once you have killed the plant and turned it under the rotting plant and roots release the stored nitrogen. But does a living plant, I'm thinking wax myrtle, increase the soils nitrogen levels? If I was to top these bushes, thus killing off root mass due to lack of greenery to support the roots, those roots that died off will release nitrogen to the soil correct?
I just trying to get a handle on how to best use nitrogen fixing plants. I would perfer to use permanent bushes like the wax myrtle which is a self seeding (think weed).