The Land Institute
Wes Jackson's Land Institute is an agricultural research center established by the author of books like 'New Roots for Agriculture' and 'Becoming Native to this Place.' I think it's well worth knowing what he's doing and if you've read any of his books you will probably fancy driving up and having a look.
Basically, Wes is proposing an alternative to industrial agricultural with its reliance on the fertilizers and pesticides manufactured from ever more expensive and ever less plentiful oil. He is working to create grass hybrids that can be allowed to grow naturally and organically.
His aim is to create high-yield perennial plants that grow and can be harvested year after year. This would reduce the dependency on petrochemicals, plus cut down on the erosion caused by repeatedly plowing the soil.
When in the area, why not have a drive out? It's a lovely part of the countryside, atop a grassy hill overlooking the creek bottom groves southeast of Salina. Their website has a map with directions to print off. You can pick up a brochure from the office and take a self-guided ramble, otherwise call ahead to reserve a spot on the occasional guided tours.