2009 Chemical Use Data for Wheat Issued May 19, 2010 by the Agricultural Statistics Board of the U.S. Department of Agriculture, National Agricultural Statistics Service. For more information, contact Theresa Varner at (202) 690-2284. USDA’s National Agricultural Statistics Service (NASS) today released data on fertilizers, pesticides and pest management practices used on wheat acres planted for the 2009 crop year. The data are available online at: http://www.nass.usda.gov/Surveys/Guide_to_NASS_Surveys/Chemical_Use/.