Ploughing along the contours of the land in order to minimize soil erosion.
- Educators need the equivalent of the tractor, contour plowing, and hybridization.
- Programmes were instituted to fill dongas, build contour banks, and promote contour ploughing.
- Jefferson was aware of the problem, and tried to mitigate it by what we would term contour ploughing on his hilly estate.
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