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How can GPS make a difference in my field?

The Global Positioning System (GPS) is a satellite-based radio navigation system initially developed and operated by the U.S. Department of Defense (DOD). GPS is helping farmers and agribusinesses to become more productive and efficient in their farming practices. Today, many farmers use GPS to conduct precision farming operations such as chemical and fertilizer application. GPS also provides location information that enables farmers to plow, harvest, map their fields, and mark areas of disease or weed infestation - any time of day or night. GPS helps farmers apply chemicals and fertilizers to their fields in trouble spots that have existed in the past. These trouble spots are where crops do not produce much of a yield. This in turn, eliminates unneeded fertilizers in non-problem areas, thus saving money and the environment, while at the same time increasing yields. These yields are compared to the previous years' yield because a combine equipped with GPS can record crop yields at every location as it covers the field.

These are the types of GPS receivers that you would find on the top of tractors and combines.

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