title: A diagnosis-prescription system for nitrogen management in environment.
abstract: A decision support system in the framework of the geographic information system (GIS) and subsurface flow model, Hydrosub, were used to identify critical areas from simulated spatial distributions of relative nitrogen export. Diagnosis and prescription Expert Systems (ES) are developed and applied to the identification of probable causes of excessive nitrogen export and selection of appropriate Best Management Practices (BMPs). The result is a spatially distributed set of recommended Best Management Practices that are feasible economically and environmentally. For the study watershed, using catch crops and rhizobium-legume (instead of using conventional commercial fertilizers) were the most recommended Best Management Practices.
authors: Fischell Department of Bioengineering, University of Maryland, College Park, MD 20742, USA. kouroush@eng.umd.edu
authors: Kouroush
authors: K
authors: Sadegh Zadeh
authors: Hubert J
authors: HJ
authors: Montas
authors: Adel
authors: A
authors: Shirmohammadi
authors: Ali
authors: A
authors: Sadeghzadeh
authors: Prabhakar R
authors: PR
authors: Gudla
mesh_terms: D000383:Agriculture / Q000379:methods; D019985:Benchmarking; D018556:Crops, Agricultural; D004784:Environmental Monitoring; D005308:Fertilizers / Q000032:analysis; D040362:Geographic Information Systems; D005843:Geography; D008396:Maryland; D009584:Nitrogen / Q000032:analysis*; D016961:Rhizobium leguminosarum / Q000737:chemistry; D014874:Water Pollutants, Chemical / Q000032:analysis*; D014876:Water Pollution / Q000517:prevention & control*; D014881:Water Supply
chemical_list: D005308:Fertilizers; D014874:Water Pollutants, Chemical; D009584:Nitrogen