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Year 2005 Remove constraint 2005: 2005 Subjects nitrogen Remove constraint nitrogen: nitrogen Subjects environmental impact Remove constraint environmental impact: environmental impact

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1. A beef herd model for simulating feed intake, animal performance, and manure excretion in farm systems

Description:: Includes references
Author:: Rotz, C.A. , Buckmaster, D.R. , Comerford, J.W.
Subject:: beef cows , simulation models , feed intake , animal performance , cattle manure , excretion , cattle production , cattle feeding , dietary fiber , energy requirements , protein requirement , finishing , calves , heifers , stocker cattle , environmental impact , dietary minerals , animal growth , nitrogen , potassium , phosphorus , particle size distribution , model validation , integrated agricultural systems
Collection:: Journal Articles, USDA Authors, Peer-Reviewed
Year:: 2005

2. Assimilation versus accumulation of macro- and micronutrients in soils: relations to livestock and poultry feeding operations

Description:: Includes references
Author:: Cole, N.A. , Schwartz, R.C. , Todd, R.W.
Subject:: poultry production , animal feeding operations , concentrated animal feeding operations , livestock production , nutrient management , animal manures , sustainable agriculture , nitrogen , phosphorus , nutrient retention , animal manure management , reduced tillage , conservation buffers , leaching , agricultural runoff , spatial variation , environmental protection , environmental impact , literature reviews , United States
Collection:: Journal Articles, USDA Authors, Peer-Reviewed
Year:: 2005

3. Book review: Agriculture and the nitrogen cycle

Description:: Includes references
Author:: Cavigelli, Michel A.
Subject:: agriculture , nitrogen , biogeochemical cycles , nitrogen fertilizers , environmental impact , food production , pollution
Collection:: Journal Articles, USDA Authors, Peer-Reviewed
Year:: 2005

4. Global soil nutrient depletion and yield reduction

Description:: Includes references
Author:: Tan, Z.X. , Lal, R. , Wiebe, K.D.
Subject:: soil fertility , soil quality , crop production , environmental factors , socioeconomic status , literature reviews , soil nutrient balance , environmental impact , grain crops , nitrogen , nitrogen fertilizers , fertilizer rates , soil degradation
Collection:: Journal Articles, USDA Authors, Peer-Reviewed
Year:: 2005

5. Invasion by a N₂-fixing tree alters function and structure in wet lowland forests of Hawaii

Description:: Includes references
Author:: Hughes, R.F. , Denslow, J.S.
Subject:: Falcataria moluccana , invasive species , trees , lowland forests , ecological invasion , community ecology , forest ecology , environmental impact , ecological succession , forest succession , forest litter , nitrogen content , soil fertility , nitrogen , phosphorus , Psidium , Metrosideros polymorpha , Hawaii
Collection:: Journal Articles, USDA Authors, Peer-Reviewed
Year:: 2005