Agroecosystem Management Research Unit Lincoln, Nebraska     Wienhold,  Brian J.  Supervisory Soil Scientist (402) 472-1484 USDA-ARS-NPA AGROECOSYSTEM MANAGEMENT RESEARCH UNIT 305 ENTOMOLOGY HALL, UNIV. OF NEBRASKA, EAST CAMPUS Lincoln NE 68583-0938   Mission: The mission of the Agroecosystem Management Research Unit is to develop sustainable integrated cropping systems and livestock management technologies and disseminate useful information and technologies to customers.