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The Three Sisters planting method is featured on the reverse of the 2009 US Sacagawea dollar. [1]Agricultural history in the Americas differed from the Old World in that the Americas lacked large-seeded, easily domesticated grains (such as wheat and barley) and large domesticated animals that could be used for agricultural labor.
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New Mexico's mountain ranges support a wide variety of plant life. In the Rocky Mountains, the slopes have forests of Douglas fir, ponderosa pine, and aspen trees at lower elevations. At higher elevations, the forests include Engelmann spruce, firs, Rocky Mountain white pine, and various aspens. Above the timberline of the mountains is alpine ...
Contour plowing or contour farming is the farming practice of plowing and/or planting across a slope following its elevation contour lines. These contour line furrows create a water break, reducing the formation of rills and gullies during heavy precipitation and allowing more time for the water to settle into the soil. [ 1 ]
Taxa of the lowest rank are always included. Higher taxa are included only if endemic. For the purposes of this category, "Texas" is defined in accordance with the World Geographical Scheme for Recording Plant Distributions. That is, the geographic region is defined by its political boundaries and includes all of Texas with no subcategories.
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