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US Agricultural Patterns. Livestock Patterns. Cows -- Dairy and Beef. Notice how Beef cows are so widely dispersed. http://www.nal.usda.gov/awic/pubs/Beef/beef.htm. But beef cattle in feedlots are more highly concentrated. What are you more likely to see in Iowa, cows or pigs?.
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Livestock Patterns • Cows -- Dairy and Beef
Crop Patterns • Climate of North America (US) • Corn, Soybeans, Sorghum, Citrus, Cotton, Wheat
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Why does this map of Soybeans so closely match the corn map?
Corn – Soybean Crop Rotation • It’s all about the nitrogen—a critical element for all life • Corn draws nitrogen from the soil (and air) and it gets used and stored in the plant and especially the kernels. • Soybeans draw nitrogen from the air and store it in nodules in the root system. When the plant dies, that nitrogen remains in the soil.