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Year 2006 Remove constraint 2006: 2006 Subjects corn Remove constraint corn: corn Subjects agricultural soils Remove constraint agricultural soils: agricultural soils

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1. Modeling nitrate leaching with a biogeochemical model modified based on observations in a row-crop field in Iowa

Description:: Includes references
Author:: Li, Changsheng , Farahbakhshazad, Neda , Jaynes, Dan B. , Dinnes, Dana L. , Salas, William , McLaughlin, Dennis
Subject:: agricultural soils , nitrate nitrogen , leaching , soil water movement , biogeochemical cycles , simulation models , tile drainage , hydrologic models , water flow , equations , precipitation , soil texture , soil organic carbon , fertilizer application , application rate , adsorption , desorption , soybeans , corn , crop yield , nutrient uptake , soil nutrient balance , Iowa
Collection:: Journal Articles, USDA Authors, Peer-Reviewed
Year:: 2006

2. Post-Harvest Soil Nitrate in Irrigated Corn: Variability Among Eight Field Sites and Multiple Nitrogen Rates

Description:: Includes references
Author:: Gehl, R.J. , Schmidt, J.P. , Godsey, C.B. , Maddux, L.D. , Gordon, W.B.
Subject:: nitrates , nitrogen , fertilizers , corn , Zea mays , leaching , fallow , rain , agricultural soils , soil texture , fertilizer application , silt loam soils , irrigation , spatial distribution , soil water movement , Nebraska
Collection:: Journal Articles, USDA Authors, Peer-Reviewed
Year:: 2006

3. Potential for a Rye Cover Crop to Reduce Nitrate Loss in Southwestern Minnesota

Description:: Includes references
Author:: Feyereisen, G.W. , Wilson, B.N. , Sands, G.R. , Strock, J.S. , Porter, P.M.
Subject:: Zea mays , corn , Glycine max , soybeans , crop rotation , Secale cereale , rye , crop production , planting date , autumn , cover crops , nitrates , leaching , subsurface drainage , water pollution , agricultural soils , nutrient uptake , soil-plant-atmosphere interactions , simulation models , plant growth , soil water balance , biogeochemical cycles , seasonal variation , Minnesota
Collection:: Journal Articles, USDA Authors, Peer-Reviewed
Year:: 2006

4. Soil Microbial Biomass Relationships with Organic Matter Fractions in a Nebraska Corn Field Mapped using Apparent Electrical Conductivity

Description:: Includes references
Author:: Grigera, M.S. , Drijber, R.A. , Eskridge, K.M. , Wienhold, B.J.
Subject:: soil microorganisms , species diversity , community structure , fatty acids , electrical conductivity , soil physical properties , soil chemical properties , soil organic matter , soil biological properties , Zea mays , corn , agricultural soils , soil bacteria , mycorrhizal fungi , soil fungi , Nebraska
Collection:: Journal Articles, USDA Authors, Peer-Reviewed
Year:: 2006

5. Spatially Variable Corn Yield is a Weak Predictor of Optimal Nitrogen Rate

Description:: Includes references
Author:: Scharf, P.C. , Kitchen, N.R. , Sudduth, K.A. , Davis, J.G.
Subject:: corn , Zea mays , crop yield , nitrogen fertilizers , fertilizer application , spatial variation , agricultural soils , claypan soils , alluvial soils , loess soils , regression analysis , statistical models , profit maximization , application rate
Collection:: Journal Articles, USDA Authors, Peer-Reviewed
Year:: 2006