It's the dead of night in rural Indiana when a truck pulls up alongside a central pivot irrigation system. Two men dressed in black get out with bolt cutters in hand, and over the next several minutes ...

CLOVERDALE — On a hot afternoon in early September, Tygh Redfield stood on the edge of his hay field and surveyed the landscape. In the distance, a massive metal pivot slowly circled the ground, ...

A central pivot irrigation system using groundwater from the High Plains (Ogallala) aquifer in southwest Kansas. This aquifer has been heavily pumped for decades, producing large water-level declines ...

Researchers have found that rust-coated irrigation pivots could signal an absence of nitrate in nearby groundwater -- and position them as a guidepost when monitoring for the contaminant, which has ...