Building a stone stairway at The Land Institute at Salina, Kansas. The stairs lead from the greenhouse to the root tube area where deep-rooted perennial plants are raised in ten-foot deep tubes of growing medium to display the difference between shallow-rooted,annual grain crops and soil-saving, energy-saving perennial crops being developed at The Land Institute. Come on a tour and walk the finished steps yourself! We have the knowledge to feed the world in a sustainable way... we need the world's help to sustain the work.

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