CHARLOTTESVILLE, Va., Aug. 28 -- The University of Virginia issued the following news release:

High above the fields of the Morven Sustainability Lab, drones equipped with heat and light sensors are changing what it means to farm smarter.

This month, researchers and students from the University of Virginia, NASA and the University of Buffalo tested drone technology by flying more than 100 feet above crops to measure plant health at UVA's 2,900-acre research facility.

"The goal of the project was to improve our ability to predict plant stress and productivity, with the eventual goal of helping farmers both grow better crops, faster and cheaper," Manuel Lerdau, a UVA professor of environmental sciences and Morven's research, said.

"This i...