Contour plowing, a farming practice that works with the slopes of the land, is an effective means of
Contour plowing, a farming practice that works with the slopes of the land, is an effective means of soil management which helps to prevent soil erosion, Wyoming, United States. Photo by Emory Kristof. National Geographic, July 1976. via @geoarchive_https://www.instagram.com/likalinea/ -- source link
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