Friday, May 16, 2014
Countour Farming - MN - USA
Contour Farming consists in using patterns of crop plantings to protect fields from erosion. When we see it from a aerial point of view we may think it's work of some extraterrestrial civilization (like the famous Crop Circles) or a consequence of to much whiskey before climbing the tractor, but the truth is that this is a ancient method of protecting the fields. Thank you very much Ruth for this beautiful postcard and your nice message. This postcard took 9 days to arrive!
Contour ploughing or contour farming is the farming practice of ploughing and/or planting across a slope following its elevation contour lines. These contour lines create a water break which reduces the formation of rills and gullies during times of heavy water run-off; which is a major cause of top soil loss and soil erosion. In contour plowing, the ruts made by the plow run perpendicular rather than parallel to slopes, generally resulting in furrows that curve around the land and are level. A similar practice is contour bunding where stones are placed around the contours of slopes.