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Subjects corn Remove constraint corn: corn Authors Colvin, T.S. Remove constraint Colvin, T.S.: Colvin, T.S.

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1. Corn response to late-spring nitrogen management in the Walnut Creek watershed

Description:: Includes references
Author:: Karlen, D.L. , Dinnes, D.L. , Jaynes, D.B. , Hurburgh, C.R. , Cambardella, C.A. , Colvin, T.S. , Rippke, G.R.
Subject:: Zea mays , corn , grain crops , nitrogen fertilizers , soil fertility , nutrient management , nitrate nitrogen , drainage , losses from soil , fertilizer rates , crop models , fertilizer requirements , chlorophyll , plant nutrition , nutrient content , nitrates , grain yield , crop quality , Iowa
Collection:: Journal Articles, USDA Authors, Peer-Reviewed
Year:: 2005

2. 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

3. Relationship of corn and soybean yield to soil and terrain properties

Description:: Includes references
Author:: Kaspar, T.C. , Pulido, D.J. , Fenton, T.E. , Colvin, T.S. , Karlen, D.L. , Jaynes, D.B. , Meek, D.W.
Subject:: Zea mays , corn , Glycine max , soybeans , grain yield , agricultural soils , soil chemical properties , soil physical properties , soil fertility , spatial variation , topography , fields , landscapes , Iowa
Collection:: Journal Articles, USDA Authors, Peer-Reviewed
Year:: 2004

4. Soil organic nitrogen enrichment following soybean in an Iowa corn-soybean rotation

Description:: Includes references
Author:: Martens, D.A. , Jaynes, D.B. , Colvin, T.S. , Kaspar, T.C. , Karlen, D.L.
Subject:: Zea mays , corn , Glycine max , soybeans , soil fertility , nitrogen , organic nitrogen compounds , crop rotation , grain yield , amino acids , galactosamine , soil test values , seasonal variation , ammonium nitrogen , soil water content , flooded conditions , soil microorganisms , glucosamine , ornithine , fertilizer requirements , nitrogen fertilizers , Iowa
Collection:: Journal Articles, USDA Authors, Peer-Reviewed
Year:: 2006

5. Using the late spring nitrate test to reduce nitrate loss within a watershed

Description:: Includes references
Author:: Jaynes, D.B. , Dinnes, D.L. , Meek, D.W. , Karlen, D.L. , Cambardella, C.A. , Colvin, T.S.
Subject:: watersheds , water pollution , pollution control , water quality , nitrate nitrogen , leaching , testing , tile drainage , surface water , chemical concentration , nitrogen fertilizers , fertilizer rates , application timing , Zea mays , corn , grain yield , statistical models , Iowa
Collection:: Journal Articles, USDA Authors, Peer-Reviewed
Year:: 2004