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Authors
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Varvel, G.E. (20)
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Schepers, J.S. (15)
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Halvorson, A.D. (12)
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Peterson, T.A. (10)
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Jaynes, D.B. (9)
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Blackmer, T.M. (8)
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Wilhelm, W.W. (8)
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Power, J.F. (7)
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Reule, C.A. (7)
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Camp, C.R. (6)
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Displaying items
1 - 10 of
187
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- Description:
- Includes references
- Author:
- Lory, J.A. , Russelle, M.P. , Randall, G.W.
- Subject:
- Zea mays , continuous cropping , crop rotation , nitrogen fertilizers , crop yield , edaphic factors , temporal variation , dry matter accumulation , soil fertility , nitrogen , application rate , fertilizer requirements , cropping sequence , Minnesota
- Collection:
- Journal Articles, USDA Authors, Peer-Reviewed
- Year:
- 1995
- Description:
- Includes references
- Author:
- Lory, J.A. , Russelle, M.P. , Peterson, T.A.
- Subject:
- nitrogen fertilizers , estimation , accuracy , crop rotation , continuous cropping , Zea mays , field crops , legumes , cover crops , Trifolium incarnatum , Glycine max , crop yield , fertilizer requirements , application rate , grains
- Collection:
- Journal Articles, USDA Authors, Peer-Reviewed
- Year:
- 1995
- Description:
- Includes references
- Author:
- Mitchell, Charles C. , Delaney, Dennis P. , Balkcom, Kipling S.
- Subject:
- Gossypium hirsutum , cotton , Zea mays , corn , Triticum aestivum , winter wheat , Glycine max , soybeans , crop yield , soil organic carbon , cover crops , crop rotation , nitrogen fertilizers , dryland farming , phosphorus , potassium , conservation tillage , crop residues , transgenic plants , subsoiling , crop management , Alabama
- Collection:
- Journal Articles, USDA Authors, Peer-Reviewed
- Year:
- 2008
- Description:
- Includes references
- Author:
- Blackmer, T.M. , Schepers, J.S.
- Subject:
- Zea mays , corn , plant nutrition , soil nutrients , nitrogen , nitrates , grain yield , aerial photography , nitrogen fertilizers , fertilizer application
- Collection:
- Journal Articles, USDA Authors, Peer-Reviewed
- Year:
- 1996
- 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
- Description:
- Includes references
- Author:
- Yost, Matt A. , Coulter, Jeffrey A. , Russelle, Michael P. , Sheaffer, Craig C. , Kaiser, Daniel E.
- Subject:
- Medicago sativa , Zea mays , alfalfa , corn , fertilizer rates , fertilizer use reduction , fine-textured soils , grain yield , nitrogen , nitrogen fertilizers , plants , potassium , prices , regrowth , silage , tillage , United States
- Collection:
- Journal Articles, USDA Authors, Peer-Reviewed
- Year:
- 2012
- Description:
- Includes references
- Author:
- Solari, Fernando , Shanahan, John F. , Ferguson, Richard B. , Adamchuk, Viacheslav I.
- Subject:
- Zea mays , corn , nitrogen , plant nutrition , nutritional status , canopy , sensors , reflectance , algorithms , chlorophyll , nitrogen fertilizers , fertilizer rates , mathematical models , equations , nitrogen balance , accuracy , model validation , grain yield , irrigated farming
- Collection:
- Journal Articles, USDA Authors, Peer-Reviewed
- Year:
- 2010
- Description:
- Includes references
- Author:
- Varvel, G.E. , Wilhelm, W.W. , Shanahan, J.F. , Schepers, J.S.
- Subject:
- Zea mays , corn , nitrogen , plant nutrition , nitrogen fertilizers , fertilizer requirements , nutrient use efficiency , chlorophyll , grain yield , cropping systems , cultivars , chemical constituents of plants , Nebraska
- Collection:
- Journal Articles, USDA Authors, Peer-Reviewed
- Year:
- 2007
- Description:
- Includes references
- Author:
- Huang, W.Y. , Hewitt, T.I. , Shank, D.
- Subject:
- Zea mays , nitrogen fertilizers , costs and returns , environmental impact , production functions , farm income , application rate , laws and regulations , farmers' attitudes , risk , Indiana
- Collection:
- Journal Articles, USDA Authors, Peer-Reviewed
- Year:
- 1998
- Description:
- Includes references
- Author:
- Blackmer, T.M. , Schepers, J.S. , Varvel, G.E. , Meyer, G.E.
- Subject:
- Zea mays , nitrogen fertilizers , nutrient availability , soil heterogeneity , aerial photography , nitrogen , nutrient deficiencies , crop yield , correlation , application rate , fertilizer requirements , variable rate application
- Collection:
- Journal Articles, USDA Authors, Peer-Reviewed
- Year:
- 1997
