Hydroponic Farming Navy Capt. Patrick Keplinger, a computer network service division officer with Headquarters and Headquarters Squadron and a Ukiah, Calif., native, shows off a plant in a hydroponic greenhouse at Archi's Acres in Escondido, Calif., Aug. 4, 2011. Keplinger completed the six-week Veterans Sustainable Agricultural Training program, which teaches veterans and active-duty service members irrigation and hydroponic farming. SHARE: Download: Full Size (0.99 MB) Tags: Veterans, All images Credit: U.S. Marine Corps photo by Pfc. Kevin Crist VIRIN: 110804-M-TE668-043.JPG Photo Gallery