Agronomy, Soil organic matter, Cropping system, Crop rotation and Canopy are his primary areas of study. He undertakes interdisciplinary study in the fields of Agronomy and Rotation through his works. His Soil organic matter research is multidisciplinary, incorporating elements of Soil carbon, Crop residue and Stover.
His Cropping system study incorporates themes from Melilotus officinalis, Monoculture and Loam. Gary E. Varvel conducts interdisciplinary study in the fields of Crop rotation and Mathematics through his works. His research integrates issues of Field experiment and Nitrogen deficiency in his study of Canopy.
His primary areas of investigation include Agronomy, Crop rotation, Cropping system, Crop residue and Stover. His work focuses on many connections between Agronomy and other disciplines, such as Soil carbon, that overlap with his field of interest in Tillage. His studies deal with areas such as Melilotus officinalis, Monoculture, Loam and Poaceae as well as Crop rotation.
Gary E. Varvel has researched Cropping system in several fields, including Soil organic matter, Soil water, Mollisol and Field experiment. The various areas that Gary E. Varvel examines in his Field experiment study include Precision agriculture and Multispectral image. His biological study spans a wide range of topics, including Dry matter, Plant nutrition and Irrigation.
Gary E. Varvel focuses on Agronomy, Stover, Corn stover, Bioenergy and Soil carbon. He combines topics linked to No-till farming with his work on Agronomy. While the research belongs to areas of Crop residue, Gary E. Varvel spends his time largely on the problem of DayCent, intersecting his research to questions surrounding Agroecosystem.
His Tillage research integrates issues from Cropping system and Soil horizon. His Crop yield research is multidisciplinary, incorporating perspectives in Zea mays, Grain yield and Winter wheat. His Fertilizer research includes themes of Melilotus officinalis, Sorghum, Crop rotation, Avena and Yield.
His primary areas of study are Agronomy, Panicum virgatum, Cellulosic ethanol, Bioenergy and Soil management. His work on Crop yield as part of general Agronomy research is often related to Alternative energy, thus linking different fields of science. His work often combines Bioenergy and Crop residue studies.
In his works, Gary E. Varvel undertakes multidisciplinary study on Soil management and Corn stover. His No-till farming research incorporates themes from Plough, Soil test, Cropping system, Tillage and Soil horizon. The Erosion study combines topics in areas such as Soil structure and Soil fertility.
D. L. Karlen;G. E. Varvel;Donald Bullock;R. M. Cruse
John F. Shanahan;James S. Schepers;Dennis D. Francis;Gary E. Varvel
Tracy M. Blackmer;James S. Schepers;Gary E. Varvel
Gary E. Varvel;James S. Schepers;Dennis D. Francis
Tracy M. Blackmer;James S. Schepers;Gary E. Varvel;Elizabeth A. Walter-Shea
Mark A. Liebig;Gary E. Varvel;John W. Doran
Gary E. Varvel;Kenneth P. Vogel;Robert B. Mitchell;R. F. Follett
M. A. Liebig;Gary E. Varvel;John W. Doran;Brian J. Wienhold
Gary E. Varvel
Todd Andrews Peterson;G. E. Varvel
Ronald F. Follett;Kenneth P. Vogel;Gary E. Varvel;Robert B. Mitchell
G. E. Varvel;Todd Andrews Peterson
Wally W. Wilhelm;J. Richard Hess;Douglas L. Karlen;Jane M. F. Johnson
Gary E. Varvel;Wally Wilhelm;J. F. Shanahan;James S. Schepers
Gary E. Varvel;Wallace Wilhelm
Tracy M. Blackmer;James S. Schepers;Gary E. Varvel;George E. Meyer
Jane M. F. Johnson;Jeff M. Novak;Gary E. Varvel;Diane E. Stott
B.J. Wienhold;J.L. Pikul;M.A. Liebig;M.M. Mikha
J.S. Schepers;J.S. Schepers;G.E. Varvel;G.E. Varvel;D.G. Watts;D.G. Watts
Gary E. Varvel
Douglas L. Karlen;Gary E. Varvel;Jane M. F. Johnson;John M. Baker
Todd Andrews Peterson;G. E. Varvel
Gary E. Varvel;Wallace Wilhelm
Gary E. Varvel
G. E. Varvel;Todd Andrews Peterson
G. E. Varvel;W. W. Wilhelm
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