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Year 2005 Remove constraint 2005: 2005 Subjects nitrogen Remove constraint nitrogen: nitrogen Subjects model validation Remove constraint model validation: model validation

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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. Numerical Modeling to Study the Fate of Nitrogen in Cropping Systems and Best Management Case Studies

Description:: In the special issue: Enhancing the efficiency of nitrogen utilization in plants / edited by S.S. Goyal, R. Tischner and A.S. Basra.
Author:: Delgado, J.A. , Alva, A.K. , Fares, A. , Paramasivam, S. , Mattos, D. , Sajwan, K.
Subject:: crops , cropping systems , nitrogen , nutrient availability , crop management , crop rotation , simulation models , crop models , model validation , plant growth , irrigation water , nutrient use efficiency , nutrient uptake , literature reviews , irrigation management , nutrient management , leaching , nitrate nitrogen , economic impact , good agricultural practices
Collection:: Journal Articles, USDA Authors, Peer-Reviewed
Year:: 2005

3. Sensitivity analyses of the nitrogen simulation model, DRAINMOD-N II

Description:: Includes references
Author:: Wang, X. , Youssef, M.A. , Skaggs, R.W. , Atwood, J.D. , Frankenberger, J.R.
Subject:: nitrate nitrogen , nitrogen , losses from soil , drainage water , drainage , agricultural management models , mathematical models , simulation models , sandy loam soils , agricultural soils , model validation , North Carolina
Collection:: Journal Articles, USDA Authors, Peer-Reviewed
Year:: 2005