Soil Fertility Management for Sustainable Agriculture (Hardcover)

Introduction
Sustainable Agriculture: Definitions and Goals
Factors Determining Sustainability
Soil Fertility
Essential Plant Nutrients
Criteria for Essentiality
Basis for Classification of Nutrients as Primary, Secondary, and Micronutrients
Primary Nutrients, Secondary Nutrients, and Micronutrients
Functions of Essential Nutrients in Plants
Soil the Sustainer
Soil Organic Matter
Soil Water
Soil Air
Soil Mineral Matter
Soil Colloids
Soil Living Organisms
Soil Colloids
Clay Minerals
Oxide Minerals
Organic Matter
Humus, Its Structure and Properties
C:N Ratio
Factors Affecting the Organic-Matter Content of Soils
Soil Acidity
Acids
The pH Concept
Determination of Soil pH
Active and Potential Acidity
Buffering Capacity
Nature of Soil Acidity
Factors Affecting Soil Acidity
Soil pH and Crop Production
Lime Requirement
Liming Materials
Fineness of Limestone
Soil Salinity and Sodicity
Coverage and Special Features
Criteria for Determining Salinity/Sodicity
Classification
Reclamation and Management of Saline Soils
Crop Production on Saline Soils
Reclamation and Management of Sodic Soils
Crop Production on Sodic Soils
Nitrogen
Soil Organic N
Mineralization of Soil Organic Nitrogen
Factors Affecting Nitrification
Nitrogen Immobilization
Ammonium Fixation (Nonexchangable Ammonium)
NH4 vs. NO3- Nutrition of Plants
Biological Nitrogen Fixation
Nitrogen Fertilizers or Industrial Nitrogen Fixation
Efficient Nitrogen Management
Increasing N Use Efficiency
Nitrogen Availability Indices
Nitrogen-Deficiency Symptoms
Phosphorus
Soil Phosphorus
Phosphate Retention or Fixation in Soil
Factors Affecting the Retention of Phosphorus by Soil
Phosphate Fertilizer Reaction Products in Soil
Intensity (I) and Quantity (Q) Factors in Phosphorus Availability
Soil Testing for Phosphorus
Phosphorus-Deficiency Symptoms in Plants
Phosphate Fertilizers
Efficient Phosphate Management
Potassium
Forms of Soil Potassium
Quantity/Intensity Relationships
Potassium Fixation
Leaching of Potassium
Potassium Fertilizers
Efficient Use of Potassium Fertilizers
Sulfur
Sulfur in Soils
Sulfur and Its Oxidation
Oxidation of Pyrites
Assessing S Needs of Soil
Sulfur Deficiency Symptoms in Plants
Sulfur Needs of Crops
Sulfur Fertilization
Calcium and Magnesium
Calcium and Magnesium in Soil
Factors Affecting the Availability of Calcium and Magnesium in Soils
Leaching of Calcium and Magnesium
Determining Available Calcium and Magnesium
Calcium and Magnesium Deficiency Symptoms
Calcium and Magnesium Amendments
Iron and Manganese
Amounts and Forms of Iron and Manganese
Soil Solution Iron and Manganese
Factors Affecting Iron and Manganese Availability
Soil Tests for Iron and Manganese
Deficiency Symptoms of Iron and Manganese
Toxicity Symptoms of Iron and Manganese
Iron and Manganese Fertilizers
Copper and Zinc
Amounts in Soil
Forms of Copper and Zinc in Soils
Factors Affecting the Availability of Copper and Zinc
Soil Tests for Copper and Zinc
Deficiency Symptoms in Plants
Copper and Zinc Fertilizers
Boron and Molybdenum
Boron
Molybdenum
Chlorine
Chlorine in Soils
Addition of Chlorine to Soils
Testing Soils for Chlorine Deficiency
Chlorine Deficiency Symptoms
Chlorine Toxicity Symptoms
Interactions with Other Nutrients
Chlorides and Plant Diseases
Crop Responses to Chloride Fertilization
Chloride Fertilizers
Beneficial Elements
Sodium
Silicon
Cobalt
Nickel
Aluminum
Vanadium, Lanthanum, and Cerium
Nutrient Interactions
Interactions
Interactions of Primary Macronutrients
Interactions of Micronutrients
Organic Manures
Crop Residues
Animal Manures
Composting
Organic Farming
Integrated Nutrient Management
Cropping Systems, Soil Fertility, and Fertilizer Use
Legumes in Crop Rotations
Intercropping Systems
Intensive Cropping Systems and Soil Fertility
Fertilizer Application in Cropping Systems
Index
Each chapter contains References.

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