Smartphone and tablet applications are enabling farmers to keep better records on their crops, monitor irrigation systems and stay abreast of weather conditions. "They would guess a lot. Or they'd write it down on little scrap pieces of paper or cigarette packs," said Heather Darby, an agronomist from the University of Vermont Extension. Darby developed goCrop, a mobile and Web app that earned a $400,000 federal grant this spring to expand its reach in California and the Northeast.
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