Contour Plowing 1 : Plowing done in accordance with the natural outline or shape of the land by keeping the furrows or ditches at the same elevation as much as possible to reduce runoff and erosion
EESiFlo North America, Terminology and Glossary: Water Terminology, Pennsylvania, USA 2002. flowmeterdirectory.com/flowmeter_terminology, (Wtr - Amer) {580}