Soil Organic Matter and Its Role in Crop Production

Content: 
Edited by
Page iii

Copyright page
Page iv

Preface
Pages v-vi
F.E. Allison

Acknowledgement
Page vi

Chapter 1 Some Agricultural Practices Over the Centuries
Pages 3-23

Chapter 2 Formation and Characteristics of Mineral Soils
Pages 27-40

Chapter 3 Microflora of Soils
Pages 41-54

Chapter 4 Animal Life of Soils
Pages 55-75

Chapter 5 Plant Roots and Microorganisms
Pages 76-93

Chapter 6 Soil Organic Matter Formation
Pages 97-119

Chapter 7 The Organic Matter Content of Soils
Pages 120-138

Chapter 8 The Nature and Composition of Soil Organic Matter
Pages 139-161

Chapter 9 The Interaction of Organic Matter with Clays
Pages 162-177

Chapter 10 Biological Fixation of Nitrogen
Pages 181-205

Chapter 11 Nonbiological Immobilization of Nitrogen
Pages 206-229

Chapter 12 Nitrification
Pages 230-253

Chapter 13 Loss of Nitrogen from Soils
Pages 254-274

Chapter 14 A Source of Inorganic Nutrients and Microbial Food
Pages 277-300

Chapter 15 An Ion Exchange Material, Chelating Agent, and Buffer
Pages 301-314

Chapter 16 A Factor in Soil Aggregation and Root Development
Pages 315-345

Chapter 17 A Factor in Water Conservation and Efficiency of Use
Pages 346-359

Chapter 18 A Source of Phytotoxic Substances
Pages 360-377

Chapter 19 A Factor in Plant Disease Control
Pages 378-396

Chapter 20 Organic Matter in the Development of Agricultural Soils
Pages 399-416

Chapter 21 Maintenance of Soil Organic Matter
Pages 417-444

Chapter 22 Green Manuring and Related Practices
Pages 445-460

Chapter 23 Nitrogen Utilization in Crop Production
Pages 461-483

Chapter 24 Tillage
Pages 484-499

Chapter 25 Use of Mulches
Pages 500-518

Chapter 26 Growing Crops on Subsoils and Mine Spoils
Pages 519-537

Chapter 27 Organic Matter and Soil Conservation
Pages 538-557

Chapter 28 Organic Farming
Pages 558-582

Chapter 29 Formation and Characteristics of Peats and Mucks
Pages 585-602

Chapter 30 The Use of Peat for Crop Production
Pages 603-617

References Index
Pages 619-630

Subject Index
Pages 631-637