Percy Edgar Brown

Percy Edgar Brown's AcademicInfluence.com Rankings

Percy Edgar Brown

Earth Sciences

#1091

Historical Rank

Soil Science

#14

Historical Rank

earth-sciences Degrees

Download Badge

Earth Sciences

Why Is Percy Edgar Brown Influential?

(Suggest an Edit or Addition)

According to Wikipedia, Percy Edgar Brown was a soil scientist at Iowa State University, Ames, Iowa. Brown is perhaps best known for the book, Soils of Iowa, which was published in 1936. The classic map, "Landform Regions of Iowa," was originally published in this text.

(See a Problem?)

Percy Edgar Brown's Published Works

Number of citations in a given year to any of this author's works

Total number of citations to an author for the works they published in a given year. This highlights publication of the most important work(s) by the author

Published Works

THE AMERICAN SOCIETY OF AGRONOMY. (1921) (129)
The Rate of Decomposition of Various Plant Materials in Soils 1 (1936) (35)
A Mechanical Apparatus for the Rapid, High-Temperature Microbial Decomposition of Fibrous, Cellulosic Materials in the Preparation of Composts for Mushroom Cultures 1 (1937) (18)
THE EFFECT OF SOME MANGANESE SALTS ON AMMONIFICATION AND NITRIFICATION (1916) (14)
THE EFFECTS OF ALKALI SALTS ON NITRIFICATION (1917) (13)
PHYSIOLOGICAL STUDIES ON RHIZOBIUM: I. THE EFFECT OF NITROGEN SOURCE ON OXYGEN CONSUMPTION BY RHIZOBIUM LEGUMINOSARUM FRANK (1934) (13)
THE DIFFUSION OF CARBON DIOXIDE THROUGH SOILS (1933) (12)
The Base Exchange Capacity of Decomposing Organic Matter 1 (1936) (10)
The Growth and Respiration of Some Soil Bacteria in Juices of Leguminous and Non-Leguminous Plants (1937) (10)
The Effect of Organic Matter on the Infiltration Capacity of Clarion Loam1 (1937) (9)
THE NOMENCLATURE OF THE COWPEA GROUP OF ROOT‐NODULE BACTERIA (1935) (9)
Effects of rotational and manurial treatments for twenty years on the organic matter, nitrogen, and phosphorus contents of Clarion and Webster soils. (1940) (8)
The color of soils in relation to organic matter content (8)
Some bacteriological effects of liming (8)
Methods for determining Carbon dioxide production in soils (1932) (7)
Effect of seasonal conditions and soil treatment on bacteria and molds in soil (7)
LAND AND LAND USE. (1936) (7)
PHYSIOLOGICAL STUDIES ON RHIZOBIUM: II. THE EFFECT OF NITROGEN SOURCE ON OXYGEN CONSUMPTION BY RH. MELILOTI, RH. TRIFOLII, AND RH. PHASEOLI (1934) (7)
The Influence of Organic Matter on Nitrate Accumulation and the Base Exchange Capacity of Dickinson Fine Sandy Loam 1 (1936) (6)
The Numbers of Ammonia-Oxidizing Organisms in Soils as Influenced by Soil Management Practices 1 (1937) (6)
THE IMPORTANCE OF MOLD ACTION IN SOILS. (1917) (6)
THE INFLUENCE OF SOME COMMON HUMUS‐FORMING MATERIALS OF NARROW AND OF WIDE NITROGEN‐CARBON RATIO ON BACTERIAL ACTIVITIES (1916) (6)
Sulfur and Permanent Soil Fertility in Iowa 1 (5)
The management of peat and alkali soils in Iowa (5)
The Numbers of Rhizobium Meliloti and Rhizobium Trifolii in Soils as Influenced by Soil Management Practices 1 (1935) (5)
The Effect of Grinding the Soil on Its Reaction as Determined by the Veitch Method. (1915) (5)
THE PRODUCTION OF AVAILABLE PHOSPHORUS FORM ROCK PHOSPHATE BY COMPOSITING WITH SULFUR AND MANURE (1917) (5)
Sulfofication in soils (5)
THE NEW SOIL SCIENCE. (1929) (4)
The effect of Certain Fertilizers on Nitrification 1 (1924) (4)
Bacteriological studies of field soils, II. The effects of continuous cropping and various rotations (4)
Microbiological studies of some typical Iowa soil profiles (4)
INOCULATED LEGUMES AS NITROGENEOUS FERTILIZERS (1921) (4)
The measurement of the degree of saturation of soils with bases (1931) (4)
Crop returns under various rotations in the Wisconsin drift soil area (4)
The Teaching of Soil Bacteriology 1 (1921) (4)
The occurrence of azotobacter in Iowa soils and factors affecting their distribution (1937) (4)
Bacterial activities in frozen soils (4)
The Assimilation of Phosphorus by Aspergillus Niger and Cunninghamella Sp. 1 (1935) (3)
A Comparison of the Numbers of Two Species of Rhizobium and Ammonia-Oxidizing Organisms in Variously Treated Iowa Soils 1 (1937) (3)
The Production of Artificial Manure from Oats Straw under Control Conditions 1 (1929) (3)
Soil and Civilization (A Modern Concept of the Soil and the Historical Development of Agriculture) (3)
Improving Iowa’s peat and alkali soils (3)
PEDOLOGY OR SOIL SCIENCE. (1930) (3)
Effect of sulfur and manure on availability of rock phosphate in soil (3)
Bacterial activities and crop production (3)
Soil acidity and the liming of Iowa soils (3)
The Rhythmical Nature of Microbiological Activity in Soil as Indicated by the Evolution of Carbon Dioxide1 (1935) (2)
Nitrification in the Grundy Silt Loam as Influenced by Liming1 (1935) (2)
The Decomposition of Lignin and Other Organic Constituents by Certain Soil Fungi 1 (1935) (2)
Minutes of the Twentieth Annual Meeting (2)
SOME FERMENTATION CHARACTERISTICS OF VARIOUS STRAINS OF RHIZOBIUM MELILOTI AND RHIZOBIUM JAPONICUM (1930) (2)
PHOSPHORUS ASSIMILATION BY SOIL MICROÖRGANISMS (1931) (2)
The economic value of farm manure as a fertilizer on Iowa soils (2)
Soils Courses at the Iowa State College (2)
Methods for the bacteriological examination of soils (2)
Soil Survey of Iowa, Report No. 29—Mahaska County Soils (2)
Effects of certain alkali salts on ammonification (2)
Some Problems of Land Use in the Corn Belt 1 (1936) (1)
Experiments on Ammonia and Nitrate Formation in Soils (1)
THE BEGINNINGS AND DEVELOPMENT OF SOIL MICROBIOLOGY IN THE UNITED STATES (1935) (1)
Maintaining fertility in the Wisconsin drift soil area of Iowa (1)
The Effect of Carbon Dioxide on Soil Reaction and on the Solubility of Phosphorus in Soils (1937) (1)
SOME EFFECTS OF CARBON DIOXIDE ON THE DECOMPOSITION OF ORGANIC MATTER AND THE ACCUMULATION OF NITRATES IN THE SOIL (1937) (1)
Soil Survey of Iowa, Report No. 78—Monroe County Soils (1936) (1)
Minutes of the Winter Meeting of the Society (1923) (1)
Laboratory and greenhouse experiments (1932) (1)
Discussion Following Presentation of Paper by W.H. Stevenson and P.E. Brown (1)
Effect of Applications of Fine Limestone: I. The Yield and Nitrogen Content of Sweet Clover and Alfalfa Grown on Shelby Loam and Clinton Silt Loam 1 (1937) (1)
Green Manuring and Soil Fertility (1)
Soil management on the Carrington silt loam (1932) (1)
Effect of Applications of Fine Limestone: III. The Yield and Nitrogen Content of Inoculated and Non-Inoculated Alfalfa Grown on Shelby Loam 1 (1938) (1)
The Teaching of Soils in Agricultural Colleges1 (1921) (1)
Bacteria at different depths in some typical Iowa soils (1)
Influence of humus forming materials of different nitrogen-carbon ratios on bacterial activities (1)
Effects of inoculation and liming on alfalfa grown on the Grundy silt loam (1933) (1)
Rotation and manure experiments on the Wisconsin drift soil area (1)
The fertility in Iowa soils (1)
A Greenhouse Study of the Effects of Fine Limestone Applied in the Row with Legume Seed on Acid Soils1 (1937) (1)
Soil Survey of Iowa, Report No. 7—Van Buren County Soils (1)
Minutes of the Twenty-Seventh Annual Meeting of the Society (1934) (1)
Soil erosion in Iowa (1936) (1)
Some chemical and bacteriological effects of various kinds and amounts of lime on certain southern Iowa soils (1932) (1)
Soil Survey of Iowa, Report No. 19—Wayne County (1)
The effects of lime on the Hydrogen-Ion concentration and base exchange complex of Grundy silt loam (1935) (1)
The production of artificial farm manures (1)
Chemical analyses of Iowa soils for Phosphorus, Nitrogen and Carbon: a statistical study (1936) (1)
Soil Survey of Iowa, Report No. 37—Dickinson County Soils (0)
Report of the Committee on Improvtments in Soil Survey Reports (0)
Soil Survey of Iowa, Report No. 28—Cedar County (0)
Field experiments with fertilizers on some Iowa soils (0)
Soil Surveys, Field Experiments and Soil Management in Iowa (0)
Soil Survey of Iowa, Report No. 10—Ringgold County (0)
Soil Survey of Iowa, Report No. 59—Cherokee County Soils (0)
Report of the Committee on Possibilities of Publishing Report and Defraying Expenses With Advertising (0)
The Determination of Sulfates in Soils. (1915) (0)
Agricultural Research Bulletins, Nos. 133–145 (0)
Effects of Various Kinds and Amounts of Lime on the Degree of Saturation of Some Southern Iowa Soils with Bases (1931) (0)
Soil Survey of Iowa, Report No. 31—Wright County Soils (0)
The inoculation of non-legumes (0)
Agricultural Research Bulletins, Nos. 44–60 (0)
A soil management program for Carrington loam (0)
Soil Survey of Iowa, Report No. 48—Floyd County Soils (0)
Nitrate-Assimilating Soil Bacteria 1 (1932) (0)
SECTION O (AGRICULTURE) AND RELATED ORGANIZATIONS. (1930) (0)
Soil Survey of Iowa, Report No. 32—Johnson County Soils (0)
Inoculation Experiments with Azotobacter on some Iowa Soils1 (1938) (0)
Soil Survey of Iowa, Report No. 71—Sac County Soils (1933) (0)
Soil Survey of Iowa, Report No. 1—Bremer County Soils (0)
A Comparison of the Niklas and Truog Methods for the Determination of Available Phosphorus in Soils1 (1932) (0)
Soil Survey of Iowa, Report No. 9—Scott County Soils (0)
Soil Survey of Iowa, Report No. 38—Hardin County (0)
SOIL EXPERIMENT FIELDS AND THEIR VALUE (1922) (0)
Soil Survey of Iowa, Report No. 17—Linn County (0)
Soil Survey of Iowa, Report No. 43—O'Brien County Soils (0)
Soil Survey of Iowa, Report No. 25—Marshall County Soils (0)
Soil Survey of Iowa, Report No. 15—Henry County (0)
Soil Survey of Iowa, Report No. 42—Jasper County Soils (0)
Soil Survey of Iowa, Report No. 61—Howard County Soils (0)
Soil Survey of Iowa, Report No. 76—Hancock County Soils (1935) (0)
Nitrate assimilation in soils (1931) (0)
Soil Survey of Iowa, Report No. 13—Montgomery County (0)
Soil Survey of Iowa, Report No. 67—Buchanan County Soils (1932) (0)
A soil management program for Grundy silt loam (0)
Soil Survey of Iowa, Report No. 58—Fremont County Soils (0)
Summer Meeting of the Corn-Belt Section of the American Society of Agronomy (1924) (0)
Soil Survey of Iowa, Report No. 21—Louisa County Soils (0)
FACTORS INFLUENCING THE OCCURRENCE OF AZOTOBACTER IN IOWA SOILS (1938) (0)
The Effect of Grinding the Soil on its Reaction as Determined by the Veitch Method 1 (0)
Soil Survey of Iowa, Report No. 55—Harrison County Soils (0)
Soil Survey of Iowa, Report No. 44—Greene County Soils (0)
Soil Survey of Iowa, Report No. 30—Fayette County Soils (0)
Bacteria and Soil Fertility (0)
Phosphorus assimilation by certain soil molds. (0)
FERRIFICATION IN SOILS (1916) (0)
Report of the Committee on the Future Field of the Soil Survey Workers Association (0)
Effect of Applications of Fine Limestone: II. The Yield and Nitrogen Content of Alfalfa Grown on Tama Silt Loam from Different Areas 1 (1937) (0)
Soil Survey of Iowa, Report No. 50—Jefferson County Soils (0)
LOSSES OF AMMONIA FROM CULTURE SOLUTIONS. (1907) (0)
Soil Survey of Iowa, Report No. 62—Warren County Soils (0)
Soil Survey of Iowa, Report No. 49—Worth County Soils (0)
Fertilizing Lawn and Garden Soils (0)
Soil Survey of Iowa, Report No. 27—Adair County Soils (0)
Soil Survey of Iowa, Report No. 22—Palo Alto County (0)
Agricultural Research Bulletins, Nos. 202-209 (1937) (0)
Agricultural Research Bulletins Nos. 122–132 (0)
Soil Survey of Iowa, Report No. 2—Pottawattamie County Soils (0)
SECTION O--AGRICULTURE AND ASSOCIATED SOCIETIES. (1922) (0)
Agricultural Research Bulletins, Nos. 1–15 (0)
Soil Survey of Iowa, Report No. 46—Benton County (0)
Soil Survey of Iowa, Report No. 3—Muscatine County (0)
The Iowa Soil Survey and Field Experiments (0)
Effects of inoculation and liming on soybeans grown on the Grundy silt loam (1932) (0)
Soil Survey of Iowa, Report No. 69—Pocahantas County Soils (1933) (0)
Soil Survey of Iowa, Report No. 18—Wapello County (0)
Agricultural Research Bulletins, Nos. 61–79 (0)
The Mystery of the Soil 1 (1932) (0)
Soil Survey of Iowa, Report No. 45—Des Moines County Soils (0)
Soil Survey of Iowa, Report No. 65—Clayton County Soils (0)
The Efficiency of Certain Ammoniated Superphosphates and Other Phosphate Fertilizers 1 (1934) (0)
4. Soil Inoculation with Azotobacter 1 (1925) (0)
Soil Survey of Iowa, Report No. 34—Boone County Soils (0)
THE DETERMINATION OF THE SULFOFYING POWER OF SOILS (1915) (0)
Soil Survey of Iowa, Report No. 5—Lee County (0)
Soil Survey of Iowa, Report No. 39—Dallas County Soils (0)
Soil Survey of Iowa, Report No. 56—Delaware County Soils (0)
Soil Survey of Iowa, Report No. 20—Hamilton County Soils (0)
Soil Survey of Iowa, Report No. 8—Clinton County (0)
Report of the Committee on Education American Soil Survey Association (1932) (0)
Soil Survey of Iowa, Report No. 33—Mills County Soils (0)
Soil Survey of Iowa, Report No. 24—Polk County Soils (0)
Agricultural Research Bulletins, Nos. 146–156 (1933) (0)
Soil and Land Valuation Short Courses1 (1929) (0)
Soil Survey of Iowa, Report No. 40—Woodbury County (0)
Agricultural Research Bulletins, Nos. 175–184 (1935) (0)
The Influence of Lime and Phosphate Fertilizers on Soil Reaction 1 (1932) (0)
Soil Survey of Iowa, Report No . 77—Washington County Soils (1935) (0)
Soil Survey of Iowa, Report No. 23—Winnebago County Soils (0)
Soil Survey of Iowa, Report No. 51—Clarke County Soils (0)
Soil Survey of Iowa, Report No. 35—Dubuque County Soils (0)
A Comparison of Various Methods for Determining the Fertilizer Needs of Certain Soils 1 (1933) (0)
The Use of Fertilizers on Iowa Soils (0)
Agricultural Research Bulletins, Nos. 27–43 (0)
Soil Survey of Iowa, Report No. 16—Buena Vista County Soils (0)
Soil Types as a Basis for Soil Investigations 1 (0)
Soil Survey of Iowa, Report No. 36—Emmet County Soils (0)
Liming Iowa Soils (0)
Agricultural Research Bulletins, Numbers 16–26 (0)
Crop yields on soil experiment fields in Iowa. (0)
Soil Survey of Iowa, Report No. 26—Madison County Soils (0)
The Pasture Problem in Iowa and How it may be Solved 1 (1931) (0)
Soil Survey of Iowa, Report No. 53—Appanoose County Soils (0)
Soil Survey of Iowa, Report No. 6—Sioux County (0)
THE AMERICAN SOCIETY OF AGRONOMY. (0)
Soil Survey of Iowa, Report No. 47—Grundy County Soils (0)
The Iowa system of soil management (0)
Agricultural Research Bulletins Nos. 210-221 (1937) (0)
The effects of artificial farm manures on soils and crops (0)

This paper list is powered by the following services:

Other Resources About Percy Edgar Brown

en.wikipedia.org

What Schools Are Affiliated With Percy Edgar Brown?

Percy Edgar Brown is affiliated with the following schools: