Mineralization of Organic Nitrogen in Soil

The free amino groups of insulin

1945 • 1,817 citations

Factors of Soil Formation

1942 • 731 citations

COMPARATIVE STUDY OF DECOMPOSITION RATES OF ORGANIC MATTER IN TEMPERATE AND TROPICAL REGIONS

1949 • 634 citations

ISOLATION AND PROPERTIES OF A PURE YEAST POLYPEPTIDASE

1941 • 560 citations

The Effect of the Addition of Organic Materials on the Decomposition of an Organic Soil

1953 • 344 citations

Investigations on the denitrifying process in soil

1954 • 300 citations

The Enigma of Soil Nitrogen Balance Sheets

1955 • 245 citations

A STABILIZED PHOTOELECTRIC COLORIMETER WITH LIGHT FILTERS

1936 • 229 citations

Studies on thiobacillus denitrificans

1954 • 212 citations

Soil Microorganisms and Plant Roots

1949 • 203 citations

Biochemistry of nitrification in soil

1946 • 180 citations

Evidence for a Nitrogenase System in the Photosynthetic Bacterium Rhodospirillum rubrum

1949 • 157 citations

Vermiculite and its relation to biotite as revealed by base exchange reactions, x-ray analyses, differential thermal curves, and water content

1948 • 148 citations

COMPOSITION OF NATURAL ORGANIC MATERIALS AND THEIR DECOMPOSITION IN THE SOIL

1929 • 142 citations

CAUSES OF THE HIGH NITROGEN AND ORGANIC MATTER CONTENT OF CERTAIN TROPICAL FOREST SOILS

1950 • 125 citations

QUALITATIVE STUDIES OF SOIL MICRO-ORGANISMS: III. INFLUENCE OF PLANT GROWTH ON THE CHARACTER OF THE BACTERIAL FLORA

1940 • 114 citations

The nitrogen cycle in grassland soils: with especial reference to the Rothamsted Park grass experiment

1938 • 111 citations

RESISTANCE OF CLAY-ADSORBED PROTEINS TO PROTEOLYTIC HYDROLYSIS

1942 • 111 citations

Nitrogen Release and Carbon Loss from Soil Organic Matter during Decomposition of Added Plant Residues

1948 • 108 citations

EXPERIMENTS ON BACTERIAL DENITRIFICATION

1952 • 108 citations

Studies on Nitrogen Fixation by Blue-Green Algae

1942 • 107 citations

ADSORPTION OF MONONUCLEOTIDES, NUCLEIC ACIDS, AND NUCLEOPROTEINS BY CLAYS

1952 • 107 citations

Some Factors Affecting the Availability of the Organic Nitrogen In Soil—A Preliminary Report

1947 • 104 citations

Studies on soil organic matter: Part I. The chemical nature of soil organic nitrogen

1949 • 102 citations

The Biochemistry of Symbiotic Nitrogen Fixation

1941 • 100 citations

The biochemistry of the nitrifying organisms. 1. The ammonia-oxidizing systems of Nitrosomonas

1952 • 98 citations

Field and Laboratory Studies of Nitrite Accumulation in Soils

1952 • 96 citations

The influence of plants on the mineralization of nitrogen and the maintenance of organic matter in the soil

1951 • 96 citations

CATION INTERCHANGE BETWEEN PLANT ROOTS AND SOIL COLLOIDS

1939 • 95 citations

The amino-acid composition of the protein material in soil

1950 • 95 citations

THE ADSORPTION OF PROTEINS BY MONTMORILLONITIC CLAYS

1939 • 95 citations

Organic Nitrogen Compounds as Nitrogen Nutrition for Higher Plants

1946 • 94 citations

VOLATILIZATION OF AMMONIA FROM SURFACE-FERTILIZED SOILS

1951 • 92 citations

THE COMPOSITION OF NATURAL ORGANIC MATERIALS AND THEIR DECOMPOSITION IN THE SOIL

1927 • 91 citations

COMPOSITION OF NATURAL ORGANIC MATERIALS AND THEIR DECOMPOSITION IN THE SOIL

1928 • 88 citations

Green Manuring: Principles and Practice

1928 • 87 citations

SOME INFLUENCES OF THE DEVELOPMENT OF HIGHER PLANTS UPON THE MICROÖRGANISMS IN THE SOIL

1929 • 86 citations

Liberation of Amino-acids by Plant Roots in relation to Desiccation

1954 • 86 citations

Das pflanzenverfügbare Magnesium des Boden und seine Bestimmung

1954 • 80 citations

Influence of microorganisms upon the carbon-nitrogen ratio in the soil

1924 • 70 citations

Influence of Rate of Plant Residue Addition in Accelerating the Decomposition of Soil Organic Matter

1953 • 69 citations

CARBON-NITROGEN RATIOS IN ORGANIC FERTILIZER MATERIALS IN RELATION TO THE AVAILABILITY OF THEIR NITROGEN

1942 • 67 citations

AMINO ACIDS AS SOURCES OF NITROGEN FOR ORCHID EMBRYOS

1948 • 66 citations

Untersuchungen �ber die nitrifizierenden Bakterien

1935 • 66 citations

MAINTENANCE OF SOIL ORGANIC MATTER

1949 • 65 citations

Influence of Crop Growth on Mineralization of Nitrogen in the Soil

1949 • 63 citations

SOME INFLUENCES OF THE DEVELOPMENT OF HIGHER PLANTS UPON THE MICROÖRGANISMS IN THE SOIL

1929 • 62 citations

On the influence of the carbon: nitrogen ratios of organic material on the mineralisation of nitrogen

1929 • 62 citations

Handbuch der Bodenlehre

1929 • 61 citations

Influence of organic Nitrogen Compounds on Nitrifications in Soil

1949 • 61 citations

UTILIZATION OF NITROGENOUS COMPOUNDS BY PLANTS

1950 • 60 citations

SOME INFLUENCES OF THE DEVELOPMENT OF HIGHER PLANTS UPON THE MICROÖRGANISMS IN THE SOIL

1931 • 60 citations

SUBSTRATE OXIDATION AND NITROUS OXIDE UTILIZATION IN DENITRIFICATION

1952 • 60 citations

The mineralization of the nitrogen of soils during incubation: Influence of pH, total nitrogen, and organic carbon contents

1952 • 57 citations

NITRATE FORMATION FROM SOIL ORGANIC MATTER IN RELATION TO TOTAL NITROGEN AND CROPPING PRACTICES

1949 • 56 citations

Studies on true dissimilatory nitrate reduction

1954 • 56 citations

The Effect of Partial Pressure of Oxygen on Some Soil Nitrogen Transformations

1952 • 54 citations

Factors Affecting the Accumulation and Loss of Nitrogen and Organic Carbon in Cropped Soils¹

1933 • 54 citations

The Effect of Quantity of Plant Material Added to Soil on its Rate of Decomposition

1949 • 53 citations

Hydroxylamine as an Intermediate in Nitrification

1952 • 53 citations

SOIL ORGANIC NITROGEN

1947 • 52 citations

THE INTERACTION OF HIGHER PLANTS AND SOIL MICRO-ORGANISMS: II. STUDY OF THE MICROBIAL POPULATION OF THE RHIZOSPHERE IN RELATION TO RESISTANCE OF PLANTS TO SOIL-BORNE DISEASES

1940 • 50 citations

BIO‐CHEMICAL DECOMPOSITION OF CELLULOSIC MATERIALS, WITH SPECIAL REFERENCE TO THE ACTION OF FUNGI¹

1927 • 48 citations

MAINTENANCE OF SOIL ORGANIC MATTER

1950 • 48 citations

DENITRIFICATION IN SOME CALIFORNIA SOILS

1951 • 48 citations

DETERMINATION OF TOTAL NITROGEN, AMMONIA, NITRATES, AND NITRITES IN SOILS

1945 • 47 citations

The Effect of Certain Herbicides on Soil Microorganisms

1946 • 47 citations

Effect of Organic Compounds on Nitrosomonas

1950 • 47 citations

Cattle Fodder and Human Nutrition

1939 • 47 citations

A lysimeter investigation of nitrogen gains and losses under various systems of covercropping and fertilization, and a discussion of error sources

1949 • 46 citations

Eine neue Methode zur quantitativen Bestimmung kleinster Mengen von Nitraten in Böden und Pflanzen

1929 • 45 citations

AMMONIUM FIXATION AND AVAILABILITY IN HARPSTER CLAY LOAM

1951 • 44 citations

Studies on true dissimilatory nitrate reduction

1954 • 44 citations

AMMONIUM FIXATION AND AVAILABILITY IN VERMICULITE

1953 • 43 citations

Losses of Nitrogen During Decomposition of Plant Material in the Presence of Inorganic Nitrogen

1952 • 43 citations

LOSS OF AMMONIA FROM AMMONIUM SULFATE APPLIED TO ALKALINE SOILS

1942 • 43 citations

The soil percolation technique

1949 • 42 citations

THE MICROFLORA OF THE RHIZOSPHERE OF TOMATO PLANTS IN RELATION TO SOIL STERILIZATION

1943 • 42 citations

Beitr�ge zur Kenntnis der Morphologie und Physiologie der Actinomyceten

1940 • 41 citations

Aggregate Formation in Soils with Special Reference to Cementing Substances

1947 • 41 citations

Toxic Effects of Amino-Acids and Amines on Seedling Growth

1947 • 40 citations

BIOCHEMISTRY OF NITRIFICATION IN SOIL

1951 • 40 citations

Threshold pH Value for the Nitrification of Ammonia in Desert Soils

1943 • 39 citations

Amino Acids as Sources of Nitrogen for Orchid Embryos

1948 • 39 citations

Nitrification in acid soils

1908 • 38 citations

INFLUENCE OF COMPOSITION OF PLANT MATERIALS ON PROPERTIES OF THE DECOMPOSED RESIDUES

1948 • 38 citations

STUDIES ON THE EFFECT OF AERATION ON NITRATE REDUCTION BY PSEUDOMONAS SPECIES USING N ¹⁵

1953 • 37 citations

AEROBIC DENITRIFICATION

1940 • 37 citations

AMINO ACIDS IN THE NUTRITION OF EXCISED TOMATO ROOTS

1937 • 36 citations

THE FORMATION OF AMMONIA FROM PROTEINS IN ALKALINE SOLUTION

1942 • 36 citations

Bacteriostatic Effects of Potassium Chlorate on Soil Nitrification

1945 • 35 citations

Mixed Cropping and the Excretion of Nitrogen by Leguminous Plants

1938 • 35 citations

Studies on true dissimilatory nitrate reduction

1954 • 35 citations

The biological decomposition of plant materials

1931 • 34 citations

THE NITRIFICATION PROCESS IN SOILS AND BIOLOGICAL FILTERS

1933 • 34 citations

The effects of zinc and copper on soil nitrification

1948 • 34 citations

Anhydrous Ammonia Retention by Soils as Influenced by Depth of Application, Soil Texture, Moisture Content, pH Value, and Tilth ¹

1947 • 33 citations

The microbiology of farmyard manure decomposition in soil. III. Decomposition of the cells of micro-organisms. (with seven text-figures.)

1932 • 32 citations

The Use of Tracer Techniques in the Simultaneous Measurement of Mineralization and Immobilization of Nitrogen in Soil

1951 • 32 citations

IV.—On nitrification

1878 • 32 citations

The Effect of Anhydrous Ammonia on Nitrification and the Microbiological Population in Sandy Soils

1954 • 32 citations

Availability of Ammonium Fixed in Difficultly Exchangeable Form by Soils of Semiarid Regions

1951 • 31 citations

The Mineralization of Organic Phosphorus, Nitrogen, and Carbon in Clarion and Webster Soils

1950 • 31 citations

Investigations on the nitrogen nutrition of plants

1949 • 31 citations

Handbuch der Landwirtschaftlichen Bakteriologie

1937 • 31 citations

The Use of the Nitrogen Isotope N¹⁵ in Determining Nitrogen Recovery from Plant Materials Decomposing in Soil¹

1943 • 31 citations

CONTACT DEPLETION OF BARLEY ROOTS AS REVEALED BY RADIOACTIVE INDICATORS

1939 • 31 citations

Aerobic Sporeforming Nitrate Reducing Bacteria

1954 • 30 citations

INFLUENCE OF OXYGEN CONCENTRATION IN SOIL AIR ON NITRIFICATION

1951 • 30 citations

Amino-acids in Soil

1950 • 29 citations

THE DERIVATION OF THE NITROGEN OF CROP PLANTS, WITH SPECIAL REFERENCE TO ASSOCIATED GROWTH

1934 • 29 citations

Movement of Nitrogen in Soils

1944 • 29 citations

A modified 2:4-xylenol method for nitrate estimations

1950 • 29 citations

Effect of Copper-Enzyme Poisons on Soil Nitrification

1946 • 29 citations

RELATION OF TEMPERATURE TO THE AMOUNT OF NITROGEN IN SOILS

1929 • 28 citations

The Nature and Amount of the Fluctuations in Nitrate Contents of Arable Soils

1914 • 28 citations

LOSS OF ELEMENTAL NITROGEN FROM SOILS UNDER ANAEROBIC CONDITIONS

1951 • 28 citations

The release of carbon dioxide from soils percolated with various organic materials

1950 • 28 citations

A simple automatic percolator

1947 • 27 citations

The Nitrogen Nutrition of Soybeans: II. Effect of Available Soil Nitrogen on Growth and Nitrogen Fixation

1946 • 27 citations

Excretion of nitrogen by leguminous plants

1938 • 27 citations

AN INVESTIGATION OF THE FREEAMINO-ACIDS IN ORGANIC SOIL TYPES USING PAPER PARTITION CHROMATOGRAPHY

1953 • 27 citations

Soil Microorganisms are Affected by Some of the New Insecticides

1948 • 26 citations

Zur Kenntnis der Huminsäuren II. Mitteilung Elektronenmikroskopische Untersuchungen an natürlichen und synthetischen Huminsäuren

2007 • 26 citations

The nature of soil‐nitrogen complexes

1952 • 26 citations

Darstellung und Verwendung von Humus-Ton-Gemischen als Träger von Pflanzennährstoffen und als Bodenverbesserungsmittel

1935 • 25 citations

Greenhouse Studies of Nitrogen Fertilization of Soybeans and Lespedeza Using Isotopic Nitrogen

1947 • 25 citations

Handbuch der landwirtschaftlichen Bakteriologie.

1910 • 25 citations

Die Bedeutung des Kohlenstoff–Stickstoff–Verhältnisses und anderer chemischen Eigenschaften der organischen Stoffe für ihre Wirkung

1930 • 25 citations

Chemical Nature of the Amino Acids excreted by Leguminous Root Nodules

1935 • 24 citations

RECOVERY OF FERTILIZER NITROGEN BY OATS IN THE GREENHOUSE

1952 • 24 citations

Studies on Azotobacter in Malayan soils

1936 • 24 citations

ASSIMILATION OF ORGANIC NITROGEN BY ZEA MAYS AND THE INFLUENCE OF BACILLUS SUBTILIS ON SUCH ASSIMILATION

1917 • 24 citations

The Effect of Green Manure Crops of Varying Carbon‐Nitrogen Ratios upon Nitrogen Availability and Soil Organic Matter Content¹

1948 • 24 citations

Depressive Influence of Certain Higher Plants on the Accumulation of Nitrates in Soil¹

1923 • 24 citations

SOME INFLUENCES OF THE DEVELOPMENT OF HIGHER PLANTS UPON THE MICROÖRGANISMS IN THE SOIL

1929 • 24 citations

NITRIFICATION IN SOILS

1925 • 24 citations

Experimentelle Untersuchungen �ber den Einflu� der Temperatur und des Wassergehaltes auf die T�tigkeit der Mikroorganismen des Bodens.

1937 • 24 citations

AMINO NITROGEN OF SOILS AND OF CERTAIN FRACTIONS ISOLATED FROM THEM

1953 • 23 citations

The assimilation of inorganic nitrogenous salts, including sodium nitrate, by the grass plant

1935 • 23 citations

PHOTOSENSITIZED OXIDATION OF AMMONIA AND AMMONIUM SALTS AND THE PROBLEM OF NITRIFICATION IN SOILS

1931 • 23 citations

Soil Conditions and Plant Growth

1938 • 23 citations

Nitrification in Decomposing Organic Matter

1954 • 23 citations

Studies on soil organic matter: Part III. The extraction of organic carbon and nitrogen from soil

1949 • 23 citations

Ernterückstände und Wurzelbild

1954 • 22 citations

PARALLEL FORMATION OF CARBON DIOXIDE, AMMONIA AND NITRATE IN SOIL

1919 • 22 citations

Nitrate Accumulation in Uganda Soils

1950 • 22 citations

Studies on the microbiology of grassland soil. Part I. General chemical and microbiological features

1934 • 22 citations

Investigations on the root nodule bacteria of leguminous plants: XIX. Influence of various factors on the excretion of nitrogenous compounds from the nodules

1937 • 22 citations

Studies on true dissimilatory nitrate reduction

1954 • 22 citations

Nitrogen Losses from Alabama Soils in Lysimeters as Influenced by Various Systems of Green Manure Crop Management¹

1942 • 21 citations

THE ROLE OF ALGAE IN THE NITROGEN CYCLE OF THE SOIL

1940 • 21 citations

Movement of Nitrogen in Flooded Soil Planted to Rice

1949 • 21 citations

Correlation Between Nitrifiable Nitrogen and Yield Response of Corn to Nitrogen Fertilization on Iowa Soils

1953 • 21 citations

Nitrogen Gas Production by the Reaction of Nitrites with Amino Acids in Slightly Acidic Media

1951 • 20 citations

Biochemistry of water-logged soils. Part IV. Carbon and nitrogen transformations

1935 • 20 citations

NITROGEN GAS FORMATION BY INTERACTION OF NITRITES AND AMINO ACIDS

1952 • 20 citations

Die Humusbildung der Mikroorganismen

1950 • 20 citations

Untersuchungen über die Ernährungsverhältnisse des Waldes, XI. Über die Stickstoffdynamik der Waldböden und die Stickstoffernährung des Waldbestandes.

1950 • 20 citations

The washing out of nitrates by drainage water from uncropped and unmanured land

1920 • 19 citations

Zur Kenntnis des Heidhumus I. Fraktionierung und Untersuchung des ganzen Humuskörpers

1953 • 19 citations

THE NITRIFYING BACTERIA: A REVIEW

1953 • 19 citations

Die Stalldüngerrotte bei steigender Stroheinstreu

1953 • 19 citations

The Amount and Composition of the Drainage through Unmanured and Uncropped Land, Barnfield, Rothamsted

1906 • 19 citations

The Role of Organic Matter, Especially Manure, in the Nutrition of Rice

1946 • 19 citations

Nitrogen Loss from Soils and Oxide Surfaces

1944 • 19 citations

Ein vereinfachtes Verfahren zur Bestimmung des Stickstoffs salpeter‐ und salpetrigsaurer Salze

1917 • 19 citations

THE EFFECT OF ORGANIC NITROGENOUS COMPOUNDS ON THE NITRATE-FORMING ORGANISM

1921 • 18 citations

TOTAL NITROGEN AS A FACTOR INFLUENCING NITRATE ACCUMULATION IN SOILS

1936 • 18 citations

PHOTONITRIFICATION IN SOIL

1933 • 18 citations

Relation of Climatic Factors to the Amount of Nitrogen in Soils¹

1928 • 18 citations

Nitrogen Uptake by Wheat in Relation to Nitrogen Content of Soil

1952 • 18 citations

Über Huminsäuren mit Aminostickstoff

1951 • 18 citations

I. Problems in the Chemistry of Soil Organic Matter

1943 • 17 citations

Der Einfluß der Mikroflora und Fauna auf die Beschaffenheit des Bodens

1949 • 17 citations

The Effect of Certain Plant Growth‐Regulators on Soil Microorganisms and Microbial Processes

1948 • 17 citations

Loss of Nitrogen from Flooded Soil as Affected by Changes in Temperature and Reaction

1945 • 17 citations

INFLUENCE OF LIGHT AND HEAT UPON THE FORMATION OF NITRATE IN SOIL

1937 • 17 citations

The Microbiology of Farmyard Manure Decomposition in Soil I. Changes in the Microflora, and their Relation to Nitrification

1931 • 17 citations

Untersuchungen über Lagerung und Wirkung von Stalldünger

1938 • 16 citations

Über die Wirkung des Kalkstickstoffs und anderer Stickstoffdünger auf die biologische Tätigkeit des Bodens

1937 • 16 citations

Zur Kenntnis der Melanoidine

1938 • 16 citations

The nitrogen status of soils Part I. The nitrification of some nitrogenous fertilizers

1950 • 16 citations

Untersuchungen über den Nährstoff- und Kohlenstoffgehalt des Stalldüngers

1952 • 16 citations

MICROBIOLOGICAL ANALYSIS OF SOIL AS AN INDEX OF SOIL FERTILITY

1924 • 16 citations

FRACTIONATION OF SOIL NITROGEN AND FACTORS AFFECTING DISTRIBUTION1

1951 • 15 citations

EFFECT OF ALFALFA ON THE FERTILITY ELEMENTS OF THE SOIL IN COMPARISON WITH GRAIN CROPS

1919 • 15 citations

Comparative behavior of ammonia and ammonium salts in soils

1945 • 15 citations

The mineralization of nitrogen in a soil acidified with sulphur, aluminium sulphate or ferrous sulphate

1953 • 15 citations

Field nitrates in Gezira soil

1950 • 15 citations

SOIL ORGANIC NITROGEN

1947 • 15 citations

The biological decomposition of plant materials

1929 • 15 citations

The nitrogen cycle in biological systems

1940 • 15 citations

A new method for the determination of ammoniacal nitrogen in soils

1924 • 15 citations

THE PREERENTIAL UTILIZATION OF DIFFERENT FORMS OF INORGANIC NITROGEN IN THE DECOMPOSITION OF PLANT MATERIALS

1935 • 15 citations

NITRATE ACCUMULATION UNDER STRAW MULCH

1922 • 15 citations

The behaviour of nitrogenous manures in the soil Part I. The loss of manurial nitrogen

1951 • 15 citations

NITRIFICATION IN SOME SOUTH AFRICAN SOILS

1921 • 15 citations

EFFECTS OF BENZENEHEXACHLORIDE ON SOIL MICROORGANISMS: I. EXPERIMENTS WITH AUTOTROPHIC BACTERIA

1954 • 14 citations

NITRIFICATION IN AN ORCHARD SOIL UNDER THREE CULTURAL PRACTICES

1953 • 14 citations

EFFECT OF GROWING LEGUMES UPON SUCCEEDING CROPS

1926 • 14 citations

NITRIFICATION IN SOILS

1927 • 14 citations

Zur Bestimmung der α-Amino-N-haltigen Komplexe im Boden

1953 • 13 citations

DETERMINATION OF NITRATE-NITROGEN WITH A PHOTOELECTRIC COLORIMETER

1941 • 13 citations

Winter Leaching and the Manurial Value of Green Manures and Crop Residues for Winter Wheat

1931 • 13 citations

COMPOSITION OF CERTAIN SOIL ORGANIC MATTER FRACTIONS1

1949 • 13 citations

THE DETERMINATION OF AMMONIA IN SOIL

1924 • 13 citations

De grond van Java en Sumatra

1922 • 13 citations

THE BIOLOGICAL DECOMPOSITION OF PLANT MATERIALS PART VIII. THE AVAILABILITY OF THE NITROGEN OF FUNGAL TISSUES

1933 • 13 citations

SOIL ORGANIC MATTER-TEMPERATURE RELATIONSHIP IN THE EASTERN UNITED STATES

1931 • 12 citations

Über die Wirkung des Hüttenkalkes auf die Zerstörung der organischen Stoffe des Bodens und über eine einfache Methode zu ihrer Bestimmung

1949 • 12 citations

CAUSES OF LOW NITRIFICATION CAPACITY OF CERTAIN SOILS

1932 • 12 citations

GASEOUS LOSSES OF NITROGEN FROM GREEN PLANTS. II. STUDIES WITH EXCISED LEAVES IN NUTRIENT MEDIA

1948 • 12 citations

Nitrification in Sudan Gezira soil

1945 • 12 citations

Nitrogen Utilization by Wheat as Affected by Rate of Fertilization

1947 • 12 citations

EFFECT OF SUNLIGHT ON THE NITRIFICATION OF AMMONIUM SALTS IN SOILS

1935 • 12 citations

Beitrag zur Frage der bei der Strohkompostierung auftretenden Humifizierungsvorgänge .

1939 • 12 citations

NEWER ASPECTS OF NITRIFICATION

1934 • 12 citations

Gestzm��ige Beziehungen zwischen Bodenhumus und Klima

1930 • 12 citations

Soil sterilization. I.—Ammonia and nitrate production in some glasshouse soils following steam sterilization

1951 • 12 citations

Die Bedeutung der Bodenoberfläche für die Humusbildung

1951 • 12 citations

Nitrate Production as Affected by Sweetclover Residues Left on the Surface of the Soil¹

1948 • 12 citations

The effects of various organic materials on soil nitrification

1948 • 12 citations

Excretion of Nitrogenous Substances from Root Nodules: Observations on Various Leguminous Plants

1939 • 11 citations

NITRIFICATION UNDER AND AFTER ALFALFA, BROME, TIMOTHY, AND WESTERN RYE GRASS: II. SOIL MICROBIOLOGICAL ACTIVITY

1939 • 11 citations

A note on the sheraqi soils of Egypt. A study in partial sterilisation

1920 • 11 citations

Einige Untersuchungen über Kunstmist

1938 • 11 citations

ORGANIC MATTER AND NITROGEN CONTENTS OF SOILS AS INFLUENCED BY MANAGEMENT

1949 • 11 citations

Mineralizable Nitrogen in Soils in Relation to the Response of Oats to Nitrogen Fertilization

1948 • 11 citations

THE SIGNIFICANCE OF NITRIFICATION AS A FACTOR IN SOIL FERTILITY

1917 • 10 citations

Effect of Carbon/Nitrogen Ratio upon the Formation of Nitrate and Ammonia from Amino-acids in Soil

1950 • 10 citations

FACTORS INFLUENCING EXCRETION OF NITROGEN BY LEGUMES

1941 • 10 citations

Nitrification of Ammonia Adsorbed on Colloidal Clay

1938 • 10 citations

The Decomposition of Green Manures in Soil

1934 • 10 citations

Conductometric Determination of Ammonia Application to Nitrogen Distribution Studies

1942 • 10 citations

Farbstoffe und Antibiotica bei Actinomyceten

1948 • 10 citations

SOME INFLUENCES OF THE DEVELOPMENT OF HIGHER PLANTS UPON THE MICROÖRGANISMS IN THE SOIL

1931 • 10 citations

MICROBIOLOGICAL ANALYSIS OF SOIL AS AN INDEX OF SOIL FERTILITY

1923 • 10 citations

SOME TRANSFORMATIONS OF UREA AND THEIR RESULTANT EFFECTS ON THE SOIL

1932 • 10 citations

The immobilization of mineral nitrogen in soils by different organic materials

1948 • 10 citations

Microbiological Oxidation of Ammonium and Thiocyanate Ions in Soil

1951 • 9 citations

Leaching Studies with Various Sources of Nitrogen¹

1939 • 9 citations

NITRATE ACCUMULATION UNDER THE STRAW MULCH

1925 • 9 citations

The Use of the Nitrogen Isotope N15 in Field Studies with Oats¹

1950 • 9 citations

Untersuchungen über organisch gebundenen Kohlenstoff in landwirtschaftlich genutzten Böden 1. Der Einfluß des Wurzelwachstums von Winterweizen auf den Kohlenstoffgehalt der Krume des Ackerbodens

1953 • 9 citations

MICROBIOLOGICAL ANALYSIS OF SOIL AS AN INDEX OF SOIL FERTILITY

1923 • 9 citations

Determination of Ammoniacal and Nitrate Nitrogen in Decomposed Plant Material

1941 • 9 citations

The effects of glucose on impure cultures of nitrifying bacteria

1951 • 9 citations

Zur Stickstoffernährung von Gramineen im Mischanbau mit Leguminosen.

1939 • 9 citations

Stallmistbereitung und zusätzliche Herstellung von Strohkompost bei verschieden starker Stroheinstreu. Untersuchungen über Lagerung und Wirkung von Stalldünger, Teil IX

1943 • 9 citations

THE COLLOIDAL CLAY FRACTION OF SOIL AS A CULTURAL MEDIUM

1938 • 9 citations

Nitrogen Fixation in the Rice-Field Soils of Bengal

1940 • 9 citations

The Effect of Soil Aeration, Moisture, and Compaction on Nitrification and Oxidation and the Growth of Sugar Beets Following Corn and Legumes in Pot Cultures

1947 • 8 citations

THE FORMATION OF NITRATES IN A SOIL FOLLOWING THE GROWTH OF RED CLOVER AND OF TIMOTHY

1920 • 8 citations

ACTION OF STABLE MANURE IN THE DECOMPOSITION OF CELLULOSE IN TILLED SOIL1

1924 • 8 citations

Die Weiterverrottung des Stalldüngers im Boden. [Teil VIII der Untersuchungen über Lagerung und Wirkung von Stalldünger]

1943 • 8 citations

UTILIZATION OF NITROGEN IN CROPPING SYSTEMS WITH AND WITHOUT GREEN MANURE IN THE GREENHOUSE

1948 • 8 citations

SOME ORGANIC SUBSTANCES AND THE NITRIFYING BACTERIA

1952 • 8 citations

TRANSFORMATION OF NITROGEN IN RICE SOIL

1949 • 8 citations

Soil sterilization. II.—Ammonia and nitrate production in a glasshouse soil steam-sterilizedin situ

1953 • 8 citations

IMPROVEMENT OF THE NITROGEN STATUS OF SOILS AND THE ORIGIN OF SOIL NITROGEN

1943 • 7 citations

Food accessory substances and the nitrite bacteria

1923 • 7 citations

INFLUENCE OF LEGUMES ON SOIL NITROGEN

1950 • 7 citations

POSSIBLE LOSSES OF NITROGEN FROM ACID SOILS THROUGH THE DECOMPOSITION OF NITRITES

1939 • 7 citations

CORRELATION OF MICROBIOLOGICAL AND CHEMICAL SOIL DATA WITH CROP YIELDS OF THE JORDAN SOIL FERTILITY PLOTS

1949 • 7 citations

The Influence of Organic Matter on Nitrate Accumulation and the Base Exchange Capacity of Dickinson Fine Sandy Loam¹

1936 • 7 citations

EFFECT OF PHOSPHATES ON NITRIFYING CAPACITY OF SOILS

1939 • 7 citations

The Origin of the “Nitre Spots” in Certain Western Soils¹

1914 • 6 citations

The Effect of Different Plant Materials, Lime, and Fertilizers on the Accumulation of Soil Organic Matter¹

1936 • 6 citations

Mikrobiologische und biochemische Untersuchungen �ber das Auftreten von zwei Maxima der Ammoniakanh�ufung im Boden

1938 • 6 citations

Ueber eine neue Darstellungsweise der untersalpetrigen Säure

1882 • 6 citations

Intermediates in Soil Nitrification

1948 • 6 citations

Bildung von Stickstoffverbindungen in Luft und im Boden unter dem Einfluß des Lichtes

1931 • 6 citations

Nitrification in Egyptian Soils

1919 • 6 citations

LYSIMETER STUDIES WITH CULTIVATED AND VIRGIN SOILS UNDER SUBHUMID RAINFALL CONDITIONS

1948 • 6 citations

Zersetzung der Nitrite in mit Basen ungesättigten Böden und das Problem der Nitrifikation.

1936 • 6 citations

Further Experiments Concerning Diffusion of Nitrogenous Compounds from Healthy Legume Nodules or Roots

1940 • 6 citations

The nitrogen status of soils Part II. The effect of levels of application on the nitrification of some nitrogenous fertilizers

1950 • 6 citations

Rapid Turbidimetric Determination of Inorganic Nitrogen in Soil and Plant Extracts

1947 • 5 citations

The Nitrogen Balance in Cultivated Semi‐Arid Western Kansas Soils 1

1929 • 5 citations

The Fertilising Value and Nitrifiability of Humic Materials Prepared from Coal (With Three Text-figures.)

1934 • 5 citations

Veränderungen im Ammoniak‐ und Nitrat‐Gehalt des Bodens

1937 • 5 citations

ASSOCIATION OF LEGUMES AND NONLEGUMES

1940 • 5 citations

THE CONTRIBUTION TO SOIL ORGANIC MATTER AND NITROGEN FROM CEREAL RESIDUES ANDUNDERSOWN CROPS

1953 • 5 citations

The behaviour of nitrogenous materials buried in the soil II. The solubilization of nitrogen under full aeration for long periods

1953 • 5 citations

ON THE DECOMPOSITION OF HEMICELLULOSES BY MICROÖRGANISMS

1931 • 5 citations

Nitrification of Amino-Acids

1950 • 5 citations

EFFECTS OF 2, 4-D AND CADE, SINGLY AND IN COMBINATION, UPON NITRATE AND BACTERIAL CONTENT OF SOILS

1952 • 5 citations

Nitrogen Fixation by Farmyard Manures

1947 • 5 citations

CAN WE PREDICT PROBABLE FERTILITY FROM SOIL BIOLOGICAL DATA?

1918 • 5 citations

NITRIFICATION UNDER AND AFTER ALFALFA, BROME, TIMOTHY, AND WESTERN RYE GRASS: I. NITROGEN ABSORPTION OF HAY CROPS AND SUCCEEDING WHEAT CROPS

1939 • 5 citations

NITRIFICATION STUDIES IN TEMPORARY GRASSLAND SOILS USING A TERFUSION TECHNIQUE

1949 • 5 citations

On the Question whether Nitrites or Nitrates are produced by non-bacterial processes in the Soil

1906 • 4 citations

NITRIFICATION UNDER AND AFTER ALFALFA, BROME, TIMOTHY, AND WESTERN RYE GRASS: III. COMPOSITION OF HAY CROP RESIDUES

1940 • 4 citations

Nitrification of Amino-Acids

1950 • 4 citations

Effect of Temperature and Photoperiod upon Growth of Grasses Planted with Legumes¹

1946 • 4 citations

NITRATES AND NITRIFICATION IN FIELD SOILS1

1924 • 4 citations

Basicity of Some Phosphates as Related to Nitrification¹

1937 • 4 citations

Using and managing soils.

1948 • 4 citations

The formation of nitrates in soil following various crop rotations

1950 • 4 citations

A Factor influencing Nitrogen Excretion from Leguminous Root Nodules

1940 • 4 citations

Ueber ein neues Schnellverfahren zur Bestimmung der Stickstoffbedürftigkeit der Böden durch chemische Analyse

1932 • 4 citations

The Numbers of Ammonia‐Oxidizing Organisms in Soils as Influenced by Soil Management Practices¹

1937 • 4 citations

Der Wasserhaushalt der mitteldeutschen Schwarzerde.

1940 • 4 citations

INOCULATED LEGUMES AS NITROGENEOUS FERTILIZERS

1921 • 3 citations

THE ORIGIN OF THE "NITER SPOTS" IN CERTAIN WESTERN SOILS

1916 • 3 citations

Untersuchungen über organisch gebundenen Kohlenstoff in landwirtschaftlich genutzten Böden/ 2. Schwankungen des Gehaltes an organisch gebundenem Kohlenstoff in unbestellten Ackerböden

1953 • 3 citations

Weitere Untersuchungen über die humusschonende Wirkung des Hüttenkalkes

1951 • 3 citations

Composts, their preparation and value

1943 • 3 citations

An improved technique for estimating the nitrifying capacity of soils

1952 • 3 citations

Using and Managing Soils

1948 • 3 citations

The microbiology of four steamed soils

1952 • 3 citations

Disappearance of Nitrates from Soil under Timothy¹

1922 • 3 citations

EFFECT OF STRAW MULCH ON RECOVERY OF NITROGEN FROM NITRATE OF SODA AND AMMONIUM SULFATE APPLIED AS TOP-DRESSING

1948 • 3 citations

NITRATE ACCUMULATION UNDER A MULCH

1927 • 3 citations

The Intensity of Nitrification in Arid Soils

1912 • 2 citations

The Effect of Certain Fertilizers on Nitrification¹

1924 • 2 citations

Effect of Quinhydrone on Soil Nitrification

1950 • 2 citations

The Effects of Summer Green Manures on the ammonia and Nitrate Contents of soils Cropped for Winter Wheat. An Examination of the Woburn Green Manure Plots

1931 • 2 citations

Real and Apparent Nitrifying Powers

1914 • 2 citations

Methods of Straw Disposal as Related to Crop Yields on the Dry Land Experiment Stations

1943 • 2 citations

The metabolism of nitrogen in soil.

1947 • 1 citations

The Colloidal Clay Fraction of Soil as a Cultural Medium

1938 • 1 citations

Über den Vorfruchtwert der wichtigsten Kulturpflanzen

1949 • 1 citations

The Relation of the Carbon‐Nitrogen Ratio of a Mulch to the Accumulation of Nitrates in Soil¹

1934 • 1 citations

Factors Affecting the Nitrate Producing Power of Some Minnesota Soils

1949 • 1 citations

THE INFLUENCE OF A MULCH ON SOIL NITRATES

1933 • 1 citations

Über Sommer- und Herbstfurche

1947 • 1 citations

Deleted Work

1955 • 0 citations