Concepedia

J. E. Harper

JE

28

Publications

1.5K

Citations

22

H-Index

1964

Active since

Affiliations

University of Illinois Urbana-Champaign(Current)

Urbana University

Agricultural Research Service

Carnegie Department of Plant Biology

Goodwin College

J. E. Harper is an author at University of Illinois Urbana-Champaign specializing in engineering, plant physiology, and botany.

Top concepts

EngineeringPlant PhysiologyBotanyBiologyAgricultural EconomicsMedicineMicrobiologyGeneticsMicrobial EcologyBiotechnology

Publications per year

1964–2013

28

Publications

28

Soil and Symbiotic Nitrogen Requirements for Optimum Soybean Production<sup>1</sup>

J. E. Harper · Crop Science · 1974 · 196 citations

Nitrate Utilization, Biogeochemistry, Engineering +11

Canopy and Seasonal Profiles of Nitrate Reductase in Soybeans (<i>Glycine max</i> L. Merr.)

J. E. Harper, R. H. Hageman · PLANT PHYSIOLOGY · 1972 · 139 citations · Full text

Improvements of the Nitrite Color Development in Assays of Nitrate Reductase by Phenazine Methosulfate and Zinc Acetate

R. L. Scholl, J. E. Harper, R. H. Hageman · PLANT PHYSIOLOGY · 1974 · 134 citations · Full text

Engineering, Chemistry, Redox Biology +17

Nitrate Effect on Nodulation of Soybean by Bradyrhizobium <i>japonicum</i><sup>1</sup>

A. H. Gibson, J. E. Harper · Crop Science · 1985 · 131 citations

Biology, Nodule Development, Engineering +13

Differential Nodulation Tolerance to Nitrate Among Legume Species

J. E. Harper, A. H. Gibson · Crop Science · 1984 · 117 citations

Biology, Engineering, Botany +11

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