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more general categories information about this item Biological Sciences Biological Sciences organisms (108862) plants (35960) trees (7529) crops (6630) cover crops (264) field crops (1894) forage crops (874) alfalfa (555) Calendar Year Calendar Year Year (337475) 2012 (47541) Economics, Business and Industry Economics, Business and Industry products and commodities (80757) agricultural products (74894) plant products (54971) grain products (16322) grains (14407) small grains (10194) wheat (4519) wheat products (5230) wheat (4519) Farms and Farming Systems Farms and Farming Systems agricultural land (5339) agricultural management (3309) crop management (2353) cropping systems (1899) Forest Science and Forest Products Forest Science and Forest Products forests (8570) forest types (1726) deciduous forests (441) Geographical Locations Geographical Locations North America (16962) United States (12631) Midwestern United States (2305) Michigan (319) Health and Pathology Health and Pathology animal and human health (42466) signs and symptoms (animals and humans) (2971) hypoxia (324) Natural Resources, Earth and Environmental Sciences Natural Resources, Earth and Environmental Sciences ecology (54081) ecosystems (7820) environmental science (25745) environmental degradation (16012) pollution (12513) water pollution (2687) groundwater contamination (795) hydrology (18092) water (12151) drainage water (2301) soil water (2267) natural resources (75944) biological resources (55960) vegetation (14356) vegetation types (11917) forests (8569) forest types (1726) deciduous forests (441) land resources (17347) land (6130) agricultural land (5339) soil science (29220) soil (6695) soil water (2267) soil management (9354) fertilizers (3809) organic fertilizers (1062) composts (790) tillage (1441) conservation tillage (560) no-tillage (439) Physical and Chemical Sciences Physical and Chemical Sciences chemical substances (129118) chemical compounds (78840) acids, bases, and salts (29068) salts (12335) inorganic salts (10494) nitrates (1902) inorganic compounds (30695) inorganic salts (10493) nitrates (1902) elements (30672) nonmetallic elements (20442) nitrogen (6752) Plant Science and Plant Products Plant Science and Plant Products crop management (2353) cropping systems (1899) plant products (54974) grain products (16323) grains (14407) small grains (10194) wheat (4519) wheat products (5230) wheat (4519) plants (35961) trees (7529) crops (6630) cover crops (264) field crops (1894) forage crops (874) alfalfa (555) soil management (9354) fertilizers (3809) organic fertilizers (1062) composts (790) tillage (1441) conservation tillage (560) no-tillage (439) Reference Types Reference Types Journal (337546) Research, Technology and Engineering Research, Technology and Engineering technology (49139) production technology (1067) Abstract of Article: Will be presented in next release Date Last Accessed: Accessed January 20, 2015 Title of Article: Long-term nitrate loss along an agricultural intensity gradient in the Upper Midwest USA Author(s) of Article: Will be identified in next release Citation: Agriculture, ecosystems and environment 2012 v.149 pp. 10-19 Click to View: (Click to View) Date of Publication: 2012 Location of Article: http://pubag.nal.usda.gov/pubag/article.xhtml?id=436940 Name of Publication: Agriculture, ecosystems and environment Publishing Company: Will be identified in next release Accession Number: 73579
