Buy frozen sea buckthorn berries, collect the seeds, plant them and use the shrub as a nitrogen fixer. Every 3 years you are going to prune the branches to freeze them in order to harvest the berrys. When you prune a nitrogen fixer , some roots are going to die, and the nitrogen nodules are going to be detached from the plant, and are ready to be consumed by other plants.
RE: Homesteading Vision: The Dream