WASHINGTON, Aug. 3 -- The U.S. Department of Agriculture's Natural Resources Conservation Service issued the following news: * * * The Natural Resource Conservation Service (NRCS) Plant Materials Center (PMC) hosted a tour for the Great Plains Regional Youth Summit in Bismarck, North Dakota, organized by the Intertribal Agriculture Council (IAC) Youth Program on July 30. * * * BISMARCK, N.D. - The Natural Resource Conservation Service (NRCS) Plant Materials Center (PMC) hosted a tour for the  more