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Subjects corn Remove constraint corn: corn Subjects economic analysis Remove constraint economic analysis: economic analysis Subjects fertilizer rates Remove constraint fertilizer rates: fertilizer rates

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1. Agronomic and Economic Performance Characteristics of Conventional and Low-External-Input Cropping Systems in the Central Corn Belt

Description:: Includes references
Author:: Liebman, M. , Gibson, L.R. , Sundberg, D.N. , Heggenstaller, A.H. , Westerman, P.R. , Chase, C.A. , Hartzler, R.G. , Menalled, F.D. , Davis, A.S. , Dixon, P.M.
Subject:: Zea mays , corn , agronomic traits , economic analysis , profitability , low input agriculture , Glycine max , soybeans , field crops , Trifolium pratense , forage legumes , Medicago sativa , alfalfa , forage crops , nitrogen fertilizers , fertilizer rates , crop rotation , herbicides , weed control , weeds , Iowa
Collection:: Journal Articles, USDA Authors, Peer-Reviewed
Year:: 2008

2. Corn Response to Conventional and Slow-Release Nitrogen Fertilizers across a Claypan Landscape

Description:: Includes references
Author:: Noellsch, A.J. , Motavalli, P.P. , Nelson, K.A. , Kitchen, N.R.
Subject:: Zea mays , corn , grain crops , nitrogen fertilizers , fertilizer rates , grain yield , slow-release fertilizers , claypan soils , nutrient uptake , nutrient use efficiency , field experimentation , topography , slope , urea , anhydrous ammonia , cost analysis , profitability , economic analysis , Missouri
Collection:: Journal Articles, USDA Authors, Peer-Reviewed
Year:: 2009

3. Crop Productivity and Economics during the Transition to Alternative Cropping Systems

Description:: Includes references
Author:: Archer, D.W. , Jaradat, A.A. , Johnson, J.M.F. , Weyers, S.L. , Gesch, R.W. , Forcella, F. , Kludze, H.K.
Subject:: Zea mays , corn , Triticum aestivum , wheat , Glycine max , soybeans , Medicago sativa , alfalfa , crop yield , grain yield , profitability , conservation tillage , crop rotation , input costs , economic analysis , organic production , conventional tillage , fertilizer rates , organic foods , food prices
Collection:: Journal Articles, USDA Authors, Peer-Reviewed
Year:: 2007

4. Effects of a Grass-Selective Herbicide in a Vetch-Rye Cover Crop System on Corn Grain Yield and Soil Moisture

Description:: Includes references
Author:: Clark, A.J. , Meisinger, J.J. , Decker, A.M. , Mulford, F.R.
Subject:: Zea mays , corn , grain yield , soil water content , cover crops , Vicia villosa , Secale cereale , rye , crop rotation , crop residues , nitrogen fertilizers , fertilizer rates , herbicides , application timing , economic analysis , profitability , Maryland
Collection:: Journal Articles, USDA Authors, Peer-Reviewed
Year:: 2007

5. Evaluating Multiple Indices from a Canopy Reflectance Sensor to Estimate Corn N Requirements

Description:: Includes references
Author:: Sripada, Ravi P. , Schmidt, John P. , Dellinger, Adam E. , Beegle, Douglas B.
Subject:: Zea mays , corn , nitrogen , plant nutrition , nutrient requirements , canopy , reflectance , remote sensing , nitrogen fertilizers , economic analysis , fertilizer rates , field experimentation , application timing , color , grain yield , mathematical models , equations , Pennsylvania
Collection:: Journal Articles, USDA Authors, Peer-Reviewed
Year:: 2008