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Subjects Triticum aestivum Remove constraint Triticum aestivum: Triticum aestivum Subjects Glycine max Remove constraint Glycine max: Glycine max Authors Karlen, D.L. Remove constraint Karlen, D.L.: Karlen, D.L.

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1. 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

2. Evaluating and predicting agricultural management effects under tile drainage using modified APSIM

Description:: Includes references
Author:: Malone, R.W. , Huth, N. , Carberry, P.S. , Ma, L. , Kaspar, T.C. , Karlen, D.L. , Meade, T. , Kanwar, R.S. , Heilman, P.
Subject:: agricultural soils , tile drainage , leaching , nitrates , losses from soil , continuous cropping , crop rotation , crop yield , Zea mays , Glycine max , simulation models , prediction , winter wheat , Triticum aestivum , water quality , Iowa
Collection:: Journal Articles, USDA Authors, Peer-Reviewed
Year:: 2007

3. Nutrient accumulation rates for wheat in the southeastern Coastal Plain

Description:: Paper presented at the "International Symposium on Soil Testing and Plant Analysis," August 14-18, 1989, Fresno, California.
Author:: Karlen, D.L. , Sadler, E.J.
Subject:: nutrient content , Triticum aestivum , coastal plains , loam soils , sandy soils , genetic improvement , double cropping , Glycine max , Gossypium hirsutum , Southeastern United States
Collection:: Journal Articles, USDA Authors, Peer-Reviewed
Year:: 1990

4. 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

5. Spatial scale requirements for precision farming: a case study in the southeastern USA

Description:: Includes references
Author:: Sadler, E.J. , Busscher, W.J. , Bauer, P.J. , Karlen, D.L.
Subject:: height , plant characteristics , Zea mays , Triticum aestivum , Glycine max , Sorghum bicolor , crop management , case studies , spatial variation , crop yield , sampling , topography , soil depth , canopy , air temperature , rain , Southeastern United States
Collection:: Journal Articles, USDA Authors, Peer-Reviewed
Year:: 1998