Tuesday, August 26, 2008

Water conservation in Georgia

Water conservation hasn't always been a top priority for farmers in Georgia. That's because water has been plentiful. But fields have suffered several droughts in recent years. So many farmers have improved the efficiency of their irrigation systems by adding low-pressure nozzles that reduce evaporation loss, and they also have started to use soil moisture monitors that eliminate guesswork about when to water.
A few began using a new computerized system (center pivot irrigation systems) that allows them to spray water onto crops exactly where it's needed without wasting it in bogs or other unplanted areas. Farmers in southwest Georgia have conserved this way more than 10 billion gallons of water.
The farmers' irrigation systems (huge metallic structures that roll across fields spraying water), have been modified with electronic circuitry that makes it possible for farmers to program precisely where the water goes. Pivot Irrigation systems: lon
g, spindly, devices on wheels that "walk" slowly across fields spraying water were virtually unknown.

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