Keyline practices were first developed by Percival Yeomans in the early 1940s in Australia. His philosophy was that permanent agriculture must benefit the farmer, the land and the soil. Australian farm and rangeland is generally dry and Yeomans developed this practice to improve degraded, eroded lands and increase their ability to hold water.
The goal of keyline design is to increase the productivity of the soil to levels greater than were present before the land was worked.
The emphasis is placed on improving soil biology and increasing soil organic matter by deep non-inversion tillage combined with cyclic grazing or mowing.
Photos by Esha Chiocchio
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