Sap flow gauges were used to measure the flow of water through the trunk of a tree. Researchers working in the experimental apple orchards at Cornell University, New York, are developing an irrigation scheduling model to help apple growers in the Northeast know how much water their trees use. To apple growers in the arid West, this probably seems common. But to growers in the eastern United States, it is uncharted territory. Historically, most orchards have not been irrigated, but every year, more growers see the need for supplemental water. The project is driven by growers’ needs for high yields […]