Drop the monoculture subsidies and give incentives for large corporate farms to sell off nice parcels at generous prices to young beginning farmers. Just as returning soldiers were given jobs in the Works Progress Administration, out-of-work families can be given tax credits to become apprentices on farms, and federally-funded farm mentor programs can help new farmers -- or "tilth developers" -- learn sustainable practices. Full-time gardener positions can be created at all public schools, prisons, and military bases (maybe bailout-funded financial institutions and auto plants too?); these gardeners can grow food to supply cafeterias and employees' grocery supplies.

Funding won't be hard, because it will mostly be paid out of existing expenses; food money that's going to private businesses making nutritionally-bereft food for students and government employees, for instance, and wheat and corn subsidies for farmers who are just storing it in silos until someone's willing to pay enough to strip it of its nutritional content and make it into junk food. Payoff will be huge, because America's health will increase as the soil is returned to its abundant heritage, reducing costs and increasing happiness. Let's be "America the Beautiful" once more, and have that beauty be more than skin deep.