Concepedia

John A. Shaffer

JA

29

Publications

811

Citations

18

H-Index

1985

Active since

Affiliations

Agricultural Research Service(Current)

Pennsylvania State University

Waters (United States)

Florida Medical Entomology Laboratory

United States Department of Agriculture

John A. Shaffer is an author at Agricultural Research Service specializing in engineering, agricultural economics, and botany.

Top concepts

Publications per year

1985–2013

29

Publications

29

Evaluation of soil organic carbon under forests, cool-season and warm-season grasses in the northeastern US

Marife D. Corre, R. R. Schnabel, John A. Shaffer · Soil Biology and Biochemistry · 1999 · 96 citations

, , +8

Denitrification in a Grassed and a Wooded, Valley and Ridge, Riparian Ecotone

R. R. Schnabel, L. F. Cornish, W. L. Stout et al. · Journal of Environmental Quality · 1996 · 72 citations

Warm‐Season Grass Diversity in Yield, Plant Morphology, and Nitrogen Concentration and Removal in Northeastern USA

G. A. Jung, John A. Shaffer, W. L. Stout et al. · Agronomy Journal · 1990 · 54 citations

, , +9

Switchgrass and Big Bluestem Responses to Amendments on Strongly Acid Soil

G. A. Jung, John A. Shaffer, W. L. Stout · Agronomy Journal · 1988 · 54 citations

, , +18

Effects of Soil and Nitrogen on Water Use Efficiency of Tall Fescue and Switchgrass Under Humid Conditions

W. L. Stout, G. A. Jung, John A. Shaffer · Soil Science Society of America Journal · 1988 · 50 citations

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