Search National Agricultural Library Digital Collections

Limit your search

Subjects

Authors

Year

Collections

Displaying all 9 items start over

1. Agroecosystem management effects on soil carbon and nitrogen

Description:
Includes references.
Author:
Wood, C.W. , Edwards, J.H.
Subject:
tillage , conservation tillage , continuous cropping , crop rotation , Triticum aestivum , Zea mays , Glycine max , soil fertility , nitrogen , carbon , soil organic matter , crop residues , mineralization , nutrient availability , soil depth , biological activity in soil , subtropics , conventional tillage , Alabama
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
1992

2. Changes in carbon content of a Norfolk loamy sand after 14 years of conservation of conventional tillage

Description:
Includes references
Author:
Hunt, P.G. , Karlen, D.L. , Matheny, T.A. , Quisenberry, V.L.
Subject:
sandy soils , coastal plain soils , soil organic matter , carbon , tillage , conservation tillage , Zea mays , Gossypium hirsutum , Glycine max , Triticum aestivum , crop rotation , long term experiments , soil depth , temporal variation , crop residues , South Carolina
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
1995

3. Crop yield and nitrogen accumulation response to tillage of a Coastal Plain soil

Description:
Includes references
Author:
Hunt, P.G. , Bauer, P.J. , Matheny, T.A. , Busscher, W.J.
Subject:
Triticum aestivum , wheat , Zea mays , corn , Glycine max , soybeans , grain crops , field crops , grain yield , crop yield , nitrogen , nutrient uptake , tillage , subsoiling , crop rotation , soil organic matter , crop residues , nutrient content , South Carolina
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2004

4. Effect of cropland management and slope position on soil organic carbon pool at the North Appalachian Experimental Watersheds

Description:
Includes references
Author:
Hao, Y. , Lal, R. , Owens, L.B. , Izaurralde, R.C. , Post, W.M. , Hothem, D.L.
Subject:
soil organic matter , carbon , no-tillage , continuous cropping , Zea mays , corn , Glycine max , soybeans , crop rotation , NPK fertilizers , cattle manure , plowing , Triticum aestivum , wheat , long term experiments , bulk density , slope , application rate , chiseling , Ohio
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2002

5. Elevated atmospheric CO₂ effects on biomass production and soil carbon in conventional and conservation cropping systems

Description:
Includes references
Author:
Prior, S.A. , Runion, G.B. , Rogers, H.H. , Torbert, H.A. , Reeves, D.W.
Subject:
carbon dioxide , elevated atmospheric gases , growth chambers , field experimentation , Sorghum bicolor , grain sorghum , Glycine max , soybeans , crop rotation , cover crops , Trifolium incarnatum , Crotalaria juncea , Triticum aestivum , wheat , no-tillage , crop residues , weeds , dry matter accumulation , carbon sequestration , soil organic matter , carbon
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2005

6. Estimating Source Carbon from Crop Residues, Roots and Rhizodeposits Using the National Grain-Yield Database

Description:
Includes references
Author:
Johnson, J.M.F. , Allmaras, R.R. , Reicosky, D.C.
Subject:
grain crops , field crops , crop residues , roots , soil organic matter , grain yield , crop residue management , agricultural history , carbon sequestration , dry matter accumulation , harvest index , soil organic carbon , no-tillage , chiseling , plowing , rhizodeposition , Triticum aestivum , wheat , Glycine max , soybeans , crop yield , root shoot ratio , United States
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2006

7. Review of elevated atmospheric CO2 effects on agro-ecosystems: residue decomposition processes and soil C storage

Description:
In the special issue: Litter quality and decomposition under elevated atmospheric CO2 / edited by J. Canadell, R. Norby, F. Cotrufo, and J. Nosberger. Paper presented at a workshop held September 24-27, 1998, Capri, Italy.
Author:
Torbert, H.A. , Prior, S.A. , Rogers, H.H. , Wood, C.W.
Subject:
Sorghum bicolor , Gossypium hirsutum , Triticum aestivum , Glycine max , crop residues , degradation , soil fertility , biogeochemical cycles , soil organic matter , nitrogen , mineralization , carbon , leaves , stems , roots , clay loam soils , silt loam soils , sandy loam soils , carbon dioxide , chemical constituents of plants , Arizona
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2000

8. Soil-test values after eight years of tillage research on a Norfolk loamy sand

Description:
Includes references
Author:
Karlen, D.L. , Berti, W.R. , Hunt, P.G. , Matheny, T.A.
Subject:
soil test values , coastal plain soils , soil fertility , conservation tillage , loamy sand soils , Zea mays , Triticum aestivum , Glycine max , nutrient offtake , soil nutrients , nutrient availability , soil pH , phosphorus , calcium , magnesium , soil organic matter , crop production , corn , wheat , soybeans , crop yield
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
1989

9. Tillage and compost affect yield of corn, soybean, and wheat and soil fertility

Description:
Includes references
Author:
Singer, J.W. , Kohler, K.A. , Liebman, M. , Richard, T.L. , Cambardella, C.A. , Buhler, D.D.
Subject:
Zea mays , corn , Glycine max , soybeans , Triticum aestivum , wheat , Trifolium , crop rotation , cropping sequence , pig manure , composted manure , organic fertilizers , fertilizer application , fertilizer rates , no-tillage , chiseling , plowing , soil fertility , grain yield , air temperature , precipitation , soil nutrients , soil organic matter , phosphorus , potassium , nutrient content , soil depth , silty soils , clay loam soils , loam soils , Endoaquolls , Hapludolls , Iowa
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2004