2026 Charles A. Shapiro: Plant Science and Agronomy Researcher – H-Index, Publications & Awards

D-Index & Metrics

Discipline name	D-Index	World Ranking	Current World Ranking	National Ranking	Current National Ranking	Publications	Citations
Plant Science and Agronomy	33	5600	5245	1362	1220	165	5247

Discipline name

D-Index

World Ranking

Current World Ranking

National Ranking

Current National Ranking

Publications

Citations

Plant Science and Agronomy

5600

5245

1362

1220

165

5247

Plant Science and Agronomy

D-Index

Citations

5247

World Ranking

5600

National Ranking

1362

Research.com Recognitions

2019 - Fellow of the Soil Science Society of America (SSSA)
2005 - Fellow of the American Society of Agronomy (ASA)

Best Publications

Cover Crops and Ecosystem Services: Insights from Studies in Temperate Soils

Humberto Blanco-Canqui;Tim M. Shaver;John L. Lindquist;Charles A. Shapiro

1178
Citations
Nitrogen application influences the critical period for weed control in corn

Sean P. Evans;Stevan Z. Knezevic;John L. Lindquist;Charles A. Shapiro

396
Citations
Corn Response to Nitrogen Rate, Row Spacing, and Plant Density in Eastern Nebraska

Charles A. Shapiro;Charles S. Wortmann

270
Citations
Soil organic carbon: The value to soil properties

Humberto Blanco-Canqui;Charles A. Shapiro;Charles S. Wortmann;Rhae A. Drijber

237
Citations
Glyphosate-Resistant Soybean Cultivar Yields Compared with Sister Lines

Roger Wesley Elmore;Fred W. Roeth;Lenis Alton Nelson;Charles A. Shapiro

201
Citations
Effect of growth promotants on the occurrence of endogenous and synthetic steroid hormones on feedlot soils and in runoff from beef cattle feeding operations.

Shannon L. Bartelt-Hunt;Daniel D. Snow;William L. Kranz;Terry L. Mader

171
Citations
The effects of manure application on soil aggregation

C. S. Wortmann;C. A. Shapiro

163
Citations
Assessing Variation in US Soybean Seed Composition (Protein and Oil)

Yared Assefa;Larry C. Purcell;Montse Salmeron;Seth Naeve

139
Citations
Soybean response to nitrogen application across the United States: A synthesis-analysis

Spyridon Mourtzinis;Gurpreet Kaur;John M. Orlowski;Charles A. Shapiro

133
Citations
Influence of nitrogen and duration of weed interference on corn growth and development

Sean P. Evans;Stevan Z. Knezevic;John L. Lindquist;Charles A. Shapiro

125
Citations
Nitrogen Use Efficiency of Irrigated Corn for Three Cropping Systems in Nebraska

C.S. Wortmann;D.D. Tarkalson;C.A. Shapiro;A.R. Dobermann

113
Citations
Glyphosate-Resistant Soybean Cultivar Response to Glyphosate

Roger Wesley Elmore;Fred W. Roeth;Robert N. Klein;Stevan Z. Knezevic

110
Citations
High-Yielding Corn Response to Applied Phosphorus, Potassium, and Sulfur in Nebraska

Charles S. Wortmann;Achim R. Dobermann;Richard B. Ferguson;Gary W. Hergert

100
Citations
Nitrogen and Irrigation Management Practices to Minimize Nitrate Leaching from Irrigated Corn

R. B. Ferguson;C. A. Shapiro;G. W. Hergert;W. L. Kranz

99
Citations
Large-Scale On-Farm Implementation of Soil Moisture-Based Irrigation Management Strategies for Increasing Maize Water Productivity

Suat Irmak;Michael J. Burgert;Haishun Yang;Kenneth G. Cassman

93
Citations
Nitrate Accumulation and Movement Under Deficit Irrigation in Soil Receiving Cattle Manure and Commercial Fertilizer

D. D. Tarkalson;J. O. Payero;S. M. Ensley;Charles A. Shapiro

89
Citations
Standardized precipitation index and nitrogen rate effects on crop yields and risk distribution in maize

C.F Yamoah;D.T Walters;C.A Shapiro;C.A Francis

82
Citations
Does inorganic nitrogen fertilization improve soil aggregation? Insights from two long-term tillage experiments.

Humberto Blanco-Canqui;Richard B. Ferguson;Charles A. Shapiro;Rhae A. Drijber

71
Citations
Yield Loss Due to Simulated Hail Damage on Corn: A Comparison of Actual and Predicted Values1

C. A. Shapiro;T. A. Peterson;A. D. Flowerday

69
Citations
Using a chlorophyll meter to manage nitrogen applications to corn with high nitrate irrigation water

Charles A. Shapiro

65
Citations
Bacterial and archaeal ammonia oxidizers respond differently to long-term tillage and fertilizer management at a continuous maize site

Lauren M. Segal;Daniel. N. Miller;Ryan P. McGhee;Terrence D. Loecke

51
Citations
Assessing Variation in US SoybeanSeed Composition (Protein and Oil)

Yared Assefa;Larry C. Purcell;Montse Salmeron;Seth Naeve

0
Citations