(NY) The New York Times – In seven years of overseeing every root and blade of grass on the grounds at the Merion Golf Club in Ardmore, Pa., Matt Shaffer has built a reputation on innovation and conservation. An early advocate of course playability over aesthetics, he long lived by the maxim “the drier, the better.”

But when a stifling heat wave threatened the club’s greens before the 2005 United States Amateur Championship — a record 17th U.S.G.A. championship at Merion — Shaffer turned to his old boss, Paul R. Latshaw Sr., for advice. Latshaw told him there was one way he could continue to cut down water use while keeping his turf dry and as fast as a microwave: sensors. More