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BL
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| Record Number
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968670
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b723040
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| Title & Author
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Advances in agronomy.\ prepared under the auspices of the American Society of Agronomy ; edited by A.G. Norman.
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| Publication Statement
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New York :: Academic Press,, 1963.
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| Series Statement
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Advances in Agronomy ;; v. 15
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| Page. NO
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1 online resource (xi, 415 pages) :: illustrations
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| ISBN
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0080563287
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: 1281741876
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: 6611741879
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: 9780080563282
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: 9781281741875
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: 9786611741877
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0120007150
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9780120007158
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| Bibliographies/Indexes
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Includes bibliographical references and indexes.
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| Contents
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Front Cover; Advances in Agronomy, Volume 15; Copyright Page; Contents; Contributors to Volume 15; Preface; CHAPTER 1. COMPETITION AMONG CROP AND PASTURE PLANTS; I. Introduction; II. The Nature of Plant Competition; III. The Influence of Density on the Community; IV. The Influence of Density on the Plant; V. The Associated Growth of Pairs of Species; VI. Equilibria in Mixtures; VII. Competition between Crops and Associate Plants; VIII. Competition between Grass and Clover; IX. Plant Arrangement; X. Competition for Nutrients; XI. Competition for Water; XII. Competition for Light.
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III. Physiological ConsiderationsIV. Breeding for the Creeping-Root Character; V. Genetics of the Creeping-Root Character; VI. Association of the Creeping-Root Character with Other Plant Characters; VII. Agricultural Performance of Spreading Alfalfas; VIII. The Future of Spreading Alfalfas; References; CHAPTER 7. SILICA IN SOILS; I. Introduction; II. Silica in Solid Forms; III. Silica in Solution; IV. Deposition of Silica in Soils; V. Silica in Relation to Kinds of Soils; References; Author Index; Subject Index.
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V. Factors Affecting the Availability of MicronutrientsVI. Needs for Future Research; References; CHAPTER 3. IMPACT OF CHEMICAL WEED CONTROL ON FARM MANAGEMENT PRACTICES; I. Introduction; II. Production of Cultivated Crops; III. Production of Deciduous Fruits and Tree Nuts; IV. Production of Pastures and Rangelands; V. Changes in Management of Farm Water Systems; VI. Summary; References; CHAPTER 4. THE PHYSICS OF WIND EROSION AND ITS CONTROL; Notation; I. Introduction; II. The Surface Wind; III. Equilibrium Forces on Soil Grains; IV. The Cycle of Wind Erosion.
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V. Soil Properties that Influence Wind ErosionVI. Wind Erosion Control; VII. The Wind Erosion Equation; VIII. Needed Research; IX. Conclusion; References; CHAPTER 5. PLANT NUTRIENT LOSSES FROM SOILS BY WATER EROSION; I. Introduction; II. Methods and Conditions of Sampling Runoff; III. Organic Matter Losses; IV. Nitrogen Losses; V. Phosphorus Losses; VI. Potassium Losses; VII. Calcium Losses; VIII. Magnesium Losses; IX. Sulfur Losses; X. Interpretation of Runoff Data; XI . Summary; References; CHAPTER 6. CREEPING ALFALFAS; I. Introduction; II. Types of Root Systems in Alfalfa.
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XIII. The Leaf Canopy and GrowthXIV. Fluctuations in Leaf Area; XV. Leaf Arrangement and Competition for Light; XVI. Height and Competition; XVII. The Interaction of Competition for Two or More Factors; XVIII. The Heritability of Competitive Ability; XIX. Competitive Ability and Yield; XX. Concluding Comments; References; CHAPTER 2. CHEMISTRY OF THE MICRONUTRIENT ELEMENTS IN SOILS; I. Introduction; II. Geochemistry of Micronutrients and Its Relation to Soils; III. Forms of Micronutrients in Soils; IV. Distribution of Micronutrients in Soils.
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| Abstract
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ADVANCES IN AGRONOMY VOLUME 15.
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Agriculture-- Research.
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Agriculture.
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Agronomy.
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Allelopathy.
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Crops-- Genetic engineering.
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Soil science.
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| Subject
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Agriculture-- Research.
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Agriculture.
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| Subject
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Agronomy.
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Allelopathy.
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Crops-- Genetic engineering.
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Soil science.
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TECHNOLOGY ENGINEERING-- Agriculture-- Agronomy-- Crop Science.
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TECHNOLOGY ENGINEERING-- Agriculture-- Agronomy-- General.
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| Dewey Classification
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630
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| LC Classification
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S405.A24 1963
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SB123.57.A38eb vol. 15
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| Added Entry
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Norman, A. G., (Arthur Geoffrey),1905-1982.
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| Added Entry
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American Society of Agronomy.
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