This year I expanded the garden to 50 x 150 and so I have a massive soil improvement project on my hands, as well as a lot more rock picking then I anticipated. So I am trying to make a bed do some serious double duty. I bought a lb of petit pois peas and planted a mixed bed of peas, white and crimson clovers, and winter wheat for the peas to climb on. So after the peas are spent out the clovers will remain until I decide to till them in. I always keep a bag of white clover around and use it to plant in my walkways after a few cultivations and I underplant many crops with it, when the crop is finished I have a cover/green manure crop already in place. This year I am going to try the same thing with crimson clover on my taller crops like corn