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- Description:
- Includes references
- Author:
- Sainju, U.M. , Whitehead, W.F. , Singh, B.P.
- Subject:
- agricultural soils , carbon , carbon sequestration , Solanum lycopersicum var. lycopersicum , tomatoes , Zea mays , corn , Secale cereale , rye , Vicia villosa , cover crops , Gossypium hirsutum , cotton , Sorghum bicolor , grain sorghum , Rhizobium leguminosarum , biomass , tillage , no-tillage , strip tillage , chiseling , nitrogen fertilizers , fertilizer application , soil organic carbon
- Collection:
- Journal Articles, USDA Authors, Peer-Reviewed
- Year:
- 2005
- Description:
- Includes references
- Author:
- Pikul, Joseph L. Jr. , Johnson, Jane M.F. , Schumacher, Thomas E. , Vigil, Merle , Riedell, Walter E.
- Subject:
- soil organic carbon , crop rotation , Zea mays , corn , agricultural soils , surface layers , nitrogen fertilizers , sandy clay loam soils , grain yield , fertilizer application , carbon sequestration , crop residues , South Dakota
- Collection:
- Journal Articles, USDA Authors, Peer-Reviewed
- Year:
- 2008
- Description:
- Includes references
- Author:
- Chang, J.Y. , Clay, D.E. , Carlson, C.G. , Reese, C.L. , Clay, S.A. , Ellsbury, M.M.
- Subject:
- precision agriculture , Glycine max , soybeans , Zea mays , corn , crop rotation , grain yield , geographic information systems , fields , agricultural soils , electrical conductivity , soil fertility , fertilizer requirements , phosphorus , phosphorus fertilizers , nitrogen , nitrogen fertilizers , fertilizer application , topography , landscapes , South Dakota
- Collection:
- Journal Articles, USDA Authors, Peer-Reviewed
- Year:
- 2004
- Description:
- Includes references
- Author:
- Kleinman, P.J.A. , Salon, P. , Sharpley, A.N. , Saporito, L.S.
- Subject:
- phosphorus , agricultural runoff , water erosion , agricultural soils , losses from soil , Zea mays , corn , cover crops , Lolium perenne , Trifolium repens , Trifolium pratense , Medicago sativa , sowing , plant establishment , crop yield , dairy manure , fertilizer application , New York
- Collection:
- Journal Articles, USDA Authors, Peer-Reviewed
- Year:
- 2005
- Description:
- Paper presented at the 2005 ASAE Annual International Meeting, held July 17-20, 2005, Tampa, Florida.
- Author:
- Gowda, P.H. , Mulla, D.J. , Larson, W.E. , American Society of Agricultural Engineers.
- Subject:
- precision agriculture , fertilizer application , phosphorus fertilizers , variable rate application , Zea mays , corn , fertilizer rates , agricultural soils , soil pH , soil fertility , soil nutrients , phosphorus , soil heterogeneity , losses from soil , sediment yield , agricultural runoff , leaching , tile drainage , agricultural management models , Minnesota
- Collection:
- Journal Articles, USDA Authors, Peer-Reviewed
- Year:
- 2005
- Description:
- In the special issue: the 4th USDA Greenhouse Gas Symposium. Paper presented at the 4th USDA Greenhouse Gas Symposium "Positioning Agriculture and Forestry to meet the Challenges of Climate Change", February 6-8, 2007, Baltimore, Maryland.
- Author:
- Causarano, H.J. , Doraiswamy, P.C. , McCarty, G.W. , Hatfield, J.L. , Milak, S. , Stern, A.J.
- Subject:
- environmental models , soil organic carbon , conventional tillage , crop management , carbon sequestration , agricultural land , agricultural soils , Zea mays , corn , Glycine max , soybeans , no-tillage , leaf area index , carbon dioxide , databases , fertilizer application , Economic Research Service , simulation models , crop yield , crop models , prediction , soil depth , meteorological data , conservation tillage , Iowa
- Collection:
- Journal Articles, USDA Authors, Peer-Reviewed
- Year:
- 2008
- Description:
- Includes references
- Author:
- Fleming, K.L. , Heermann, D.F. , Westfall, D.G.
- Subject:
- soil color , agricultural soils , electrical conductivity , surface layers , fields , spatial variation , fertilizer application , variable rate application , farmers' attitudes , agricultural management , crop production , Zea mays , corn , grain yield , soil fertility , soil texture , Colorado
- Collection:
- Journal Articles, USDA Authors, Peer-Reviewed
- Year:
- 2004
- Description:
- Includes references
- Author:
- Zhu, Q. , Schmidt, J.P. , Lin, H.S. , Sripada, R.P.
- Subject:
- nitrogen , soil fertility , soil nutrients , spatial variation , temporal variation , fields , agricultural soils , Zea mays , corn , nutrient availability , topography , slope , floodplains , soil water content , subsurface flow , soil matric potential , fertilizer application , ammonium nitrate , nutrient uptake , grain yield , landscapes , Pennsylvania
- Collection:
- Journal Articles, USDA Authors, Peer-Reviewed
- Year:
- 2009
- Description:
- Includes references
- Author:
- Mao, Jingdong , Olk, Dan C. , Fang, Xiaowen , He, Zhongqi , Schmidt-Rohr, Klaus
- Subject:
- soil organic matter , humic acids , humates , chemical structure , cattle manure , mineral fertilizers , fertilizer application , agricultural soils , peptides , nuclear magnetic resonance spectroscopy , Fourier transform infrared spectroscopy , soil biochemistry , Zea mays , corn , crop yield , nitrogen , phosphorus , spectral analysis , accuracy
- Collection:
- Journal Articles, USDA Authors, Peer-Reviewed
- Year:
- 2008
- Description:
- Includes references
- Author:
- Ohno, Tsutomu , He, Zhongqi , Tazisong, Irenus A. , Senwo, Zachary N.
- Subject:
- crop production , agricultural soils , silt loam soils , soil organic matter , humic acids , fulvic acids , conventional tillage , no-tillage , fertilizer application , ammonium nitrate , poultry manure , fertilizer rates , application rate , cropping systems , Gossypium hirsutum , cotton , Zea mays , corn , Secale cereale , rye , crop rotation , spectroscopy , humic substances , Alabama
- Collection:
- Journal Articles, USDA Authors, Peer-Reviewed
- Year:
- 2009
