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Subjects nitrogen fertilizers Remove constraint nitrogen fertilizers: nitrogen fertilizers Subjects Glycine max Remove constraint Glycine max: Glycine max Subjects water pollution Remove constraint water pollution: water pollution Subjects nitrogen fertilizers Remove constraint nitrogen fertilizers: nitrogen fertilizers

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1. Corn Yield and Nitrate Loss in Subsurface Drainage from Midseason Nitrogen Fertilizer Application

Description:: Includes references
Author:: Jaynes, D.B. , Colvin, T.S.
Subject:: Zea mays , corn , Glycine max , soybeans , crop production , crop yield , nitrogen fertilizers , application rate , application timing , seasonal variation , nitrates , leaching , water pollution , drainage water , subsurface drainage
Collection:: Journal Articles, USDA Authors, Peer-Reviewed
Year:: 2006

2. DRAINMOD-N II: Evaluated for an Agricultural System in Iowa and Compared to RZWQM-DSSAT

Description:: Includes references
Author:: Thorp, K.R. , Youssef, M.A. , Jaynes, D.B. , Malone, R.W. , Ma, L.
Subject:: agricultural watersheds , nitrogen , losses from soil , hydrologic models , agricultural management models , simulation models , subsurface drainage , drainage water , nitrogen fertilizers , fertilizer application , fertilizer rates , nitrate nitrogen , water pollution , crop production , Zea mays , corn , Glycine max , soybeans , Iowa
Collection:: Journal Articles, USDA Authors, Peer-Reviewed
Year:: 2009

3. Nitrate loss in subsurface drainage as affected by nitrogen fertilizer rate

Description:: Includes references
Author:: Jaynes, D.B. , Colvin, T.S. , Karlen, D.L. , Cambardella, C.A. , Meek, D.W.
Subject:: water pollution , subsurface drainage , Zea mays , Glycine max , crop production , crop yield , nitrogen fertilizers , nitrates , leaching , losses from soil , groundwater contamination , quantitative analysis , agricultural soils , water management , application rate , Iowa
Collection:: Journal Articles, USDA Authors, Peer-Reviewed
Year:: 2001

4. Nitrate-nitrogen patterns in the Raccoon River Basin related to agricultural practices

Description:: Includes references
Author:: Hatfield, J.L. , McMullen, L.D. , Jones, C.S.
Subject:: rivers , agricultural watersheds , nitrate nitrogen , drinking water , water quality , water pollution , nitrogen fertilizers , fertilizer application , Zea mays , corn , Glycine max , soybeans , crop yield , water balance , water use , nutrient management , cattle production , temporal variation , pollution load , Iowa
Collection:: Journal Articles, USDA Authors, Peer-Reviewed
Year:: 2009

5. Reduction of high soil test phosphorus by corn and soybean varieties

Description:: Includes references
Author:: Eghball, B. , Shanahan, J.F. , Varvel, G.E. , Gilley, J.E.
Subject:: water pollution , Zea mays , corn , hybrids , Glycine max , soybeans , varieties , harvesting , soil nutrients , soil test values , phosphorus , extraction , nutrient uptake , nutrient content , beef cattle , feedlots , cattle manure , composted manure , phosphorus fertilizers , nitrogen fertilizers , fertilizer application , chemical composition , grain yield , residual effects , irrigated conditions , soil depth , equations , Nebraska
Collection:: Journal Articles, USDA Authors, Peer-Reviewed
Year:: 2003