Forage Rye:
Provides good ground cover, bulky foliage and deep roots that reduce nutrient leaching and help break up heavy soil.
English Early Common Vetch
Produces a lot of bulky foliage that helps improve the soil structure/texture by adding good add organic matter. It also has the ability to fix nitrogen and suppresses weeds.
Minerva Maple Peas:
Excellent at fixing nitrogen in their root nodules.
Italian Ryegrass:
A good at suppressing weeds and fits anywhere into crop rotation plans. It has the ability to lift nitrogen from the soil and slowly release it to the following crop.