Blanche Halbert / Charles Abel Bennett / Charles James Whitfield / Claude Kedzie Shedd / Claude L. Hamilton / E. M. Rowalt / George Stewart / Glenn Kenton Rule / Hans G. Jepson / James Allen Beal / James Robert McCalmont / James Wiley Christie / K. F. Warner / Karl S. Quisenberry / Lafayette Charles Carey / Max Manley Hoover / Merle T. Jenkins / Nicholas Aloysius Kessler / R. T. Cotton / Roland McKee / Samuel Cecil Salmon / Thomas William Heitz / William Sylva Gochenour / Edgar Vermont Collins / Harry August Schoth / Jacob Allen Clark / John Albright Perrin / John Walter Taylor / Rudger Harper Walker / Thomas Laffin Baggette / Francis Leo Gerdes / Raymond Price

CUB:U183021566053

Arroyos

George Stewart / Raymond Price / Rudger Harper Walker

UIUC:30112019287892

Agriculture

Rudger Harper Walker / Arthur Wesley Young / Percy Edgar Brown

UIUC:30112019567996

Liming of soils

Charles Webster Knox / Donald Rockwell Porter / Dwight Leonard Espe / Frederick Burean Smith / Henry Giese / M. B. Michaelian / Oscar Wallace Park / Rudger Harper Walker / William Gordon Murray / William Vincent Lambert / Arthur Wesley Young / Bernard Wernick Hammer / Clawson Young Cannon / E. N. Hansen / Irving E. Melhus / Percy Edgar Brown / Ralph S. Farmer

UIUC:30112019567095

Agriculture

Rudger Harper Walker / Percy Edgar Brown

UIUC:30112019568317

Hydrogen-ion concentration

Rudger Harper Walker / Percy Edgar Brown

UIUC:30112019562468

Alfalfa

Arthur Laurence Bakke / Barton Morgan / F. D. Perry / Glen Norton Davis / Harold Lee Dean / Harold Ludwig Wilcke / Hartzell Curtis Dean / Joseph Jay Wilson / Paul Lester Errington / Samuel Holliston Thompson / Frederick Hamerstrom / Paul L. Miller / Rudger Harper Walker / William Henry Lancelot

UIUC:30112019567129

Bobwhite

Eugene George McKibben / H. C. Olson / Henry Giese / Jay Laurence Lush / Paul L. Miller / Rudger Harper Walker / Bernard Wernick Hammer / Jay Brownlee Davidson / Percy Edgar Brown / Henry J. Barre

UIUC:30112019560116

Agar

Rudger Harper Walker / Percy Edgar Brown

UIUC:30112019562385

Legume inoculation

H. F. Long / Henry Giese / Jay Laurence Lush / Jesse Jarue Mark / M. B. Michaelian / Rainer Schickele / Rudger Harper Walker / Bernard Wernick Hammer / Jay Brownlee Davidson / Percy Edgar Brown / Henry J. Barre

UIUC:30112019567137

Agriculture

William P. Martin / Percy Edgar Brown / Rudger Harper Walker

UIUC:30112019568754

Azotobacter

Rudger Harper Walker / Percy Edgar Brown

UIUC:30112019568606

Soils

Harold Lee Dean / Rudger Harper Walker

UIUC:30112019568515

Calcium fertilizers

Rudger Harper Walker / Percy Edgar Brown / B. J. Firkins

UIUC:30112019567897

Ion exchange

Rudger Harper Walker

UIUC:30112079982838

Agriculture

Rudger Harper Walker

UIUC:30112019567640

Legumes

Rudger Harper Walker / Aaron Francis Bracken

UIUC:30112019888665

Dry farming

Blanche Halbert / Charles Abel Bennett / Charles James Whitfield / Claude Kedzie Shedd / Claude L. Hamilton / E. M. Rowalt / George Stewart / Glenn Kenton Rule / Hans G. Jepson / James Allen Beal / James Robert McCalmont / James Wiley Christie / K. F. Warner / Karl S. Quisenberry / Lafayette Charles Carey / Max Manley Hoover / Merle T. Jenkins / Nicholas Aloysius Kessler / R. T. Cotton / Roland McKee / Samuel Cecil Salmon / Thomas William Heitz / William Sylva Gochenour / Edgar Vermont Collins / Harry August Schoth / Jacob Allen Clark / John Albright Perrin / John Walter Taylor / Rudger Harper Walker / Thomas Laffin Baggette / Francis Leo Gerdes / Raymond Price

CUB:U183021566053

Arroyos

Rudger Harper Walker

UIUC:30112019567640

Legumes

Charles Sylvester Dorchester / E. W. Bird / George Lee McNew / John Crosby Eldredge / Louise Jenison Peet / Roy A. Grout / W. L. Slatter / William P. Martin / Belle Lowe / Bernard Wernick Hammer / H. A. Derby / Lucille O. MacDonald / Percy Edgar Brown / Rudger Harper Walker

UIUC:30112019567145

Azotobacter

George Stewart / Raymond Price / Rudger Harper Walker

UIUC:30112019287892

Agriculture

Rudger Harper Walker / Percy Edgar Brown

UIUC:30112019562468

Alfalfa