Crops as Enhancers of Nutrient Use - 1st Edition - ISBN: 9780120771257, 9780323145169

Crops as Enhancers of Nutrient Use

1st Edition

Authors: R Duncan
eBook ISBN: 9780323145169
Imprint: Academic Press
Published Date: 28th November 1990
Page Count: 588
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Description

Crops as Enhancers of Nutrient Use examines the various plant and soil factors that contribute to nutrient use efficiency of plants. It attempts to address policies regarding Low Input Sustainable Agriculture (LISA), conservation-oriented cropping systems, and reductions in environmental contaminants. It also presents longer-term remedies to some of the inherent problems of high volume applications of expensive fertilizer nutrients. This book emphasizes plant-soil interaction, particularly, nutritional interactions involving rhizosphere, microbes, and stress on the root system. Stress factors include moisture and low and high pH. The book also covers the genetic and physiological response of plant to nutrients at the cellular level, on a whole-plant basis, and when subjected to stress. This book will contribute to the development of a more cost-effective and judicious nutrient usage of major crops.

Table of Contents


Contributors

Preface

Part I Genetic and Physiological Basis of Nutrient Uptake and Use Efficiency

Chapter 1 Genetics, Breeding, and Physiological Mechanisms of Nutrient Uptake and Use Efficiency: An Overview

I. Gene Implications

II. Breeding Techniques

III. Physiological Mechanisms

IV. Summary 25

References

Chapter 2 Ion Absorption and Utilization: The Cellular Level

I. Ion Absorption by Roots

II. Regulation of Ion Uptake

III. Utilization of Absorbed Nutrients

IV. Summary

References

Chapter 3 Plant Nutrition Relationships at the Whole-Plant Level

I. Nutritional Variation

II. Root Effects on Whole-Plant Functioning

III. Efficient Cultivars: A Whole-Plant Function

IV Summary

References

Chapter 4 Genetics and Breeding of Cereals for Acid Soils and Nutrient Efficiency

I. Acid Soil Stress

II. Compatibility of Genetically Controlled Tolerances to Stresses

III. Role of Genetic Engineering

References

Chapter 5 Physiology of Cereals for Mineral Nutrient Uptake, Use, and Efficiency

I. Definition of Mineral Nutrient Efficiency

II. Rationale for Improving Plants for Mineral Nutritional Characteristics

III. Mechanisms for Genotypic Variation in Mineral Nutrients

IV. Summary

References

Chapter 6 Legume Genetics and Breeding for Stress Tolerance and Nutrient Efficiency

I. Formulation of Goals

II. Assessment of Stress Factors in the Edaphic Environment and Their Amendability to Resolution through Plant Breeding

III. Breeding Principles

IV. Genetic Variability

V. Inheritance and Heritability

VI. Acid Soil Stress

VII. Alkaline Soils

VIII. Salinity and Other Problems

IX. Micronutrients

X. Phosphorus

XI. Potassium

XII. Symbiotic Nitrogen Fixation

XIII. Mycorrhizae and Legumes in Problem Soils

XIV. Summary

References

Chapter 7 Mechanisms Improving Nutrient Use by Crop and Herbage Legumes

I. Mechanisms Improving Nutrient Uptake

II. Mechanisms Improving Nutrient Use

III. Effect of Genotype X Environment Interactions on Improved Nutrient Uptake and Use

IV. Summary

References

Chapter 8 Role of Foliar Fertilization on Plant Nutrition

I. Overview

II. Leaf Structure and Components

III. Efficiency of Foliar Uptake

IV. Foliar Uptake—Long-Distance Transport

V Environmental/Physiological Factors Affecting Foliar Uptake

VI. Fertilizer Use Efficiency

VII. Summary

References

Part II Plant—Soil Interactions in Altering Nutrient Use Efficiency

Chapter 9 Soil—Plant Interaction on Nutrient Use Efficiency in Plants: An Overview

I. Plant Factors

II. Nutritional Factors

III. Environmental Factors

IV. Microbial Association

V. Soil Management

VI. Summary

References

Chapter 10 Root Microbial Interactions and Rhizosphere Nutrient Dynamics

I. The Rhizosphere Ecosystem

II. Specific Root Microbial Interactions

III. Nutrient Availability and Uptake

IV. Rhizosphere Dynamics, Biological Control, and Emerging Technologies

References

Chapter 11 Influence of Root System Morphology and Development on the Need for Fertilizers and the Efficiency of Use

I. Crop Nutrient Requirements

II. Root System Characters with Potential for Variation

III. Root System Morphology and Development

IV. Variation in Root and Root System Activity

VI. Root System Activity and Functioning

VII. Prospects for Modifying Plant Root Systems

VIII. Conclusions: Possibilities for Improving Nutrient Capture by Modification of the Root System References

Chapter 12 Role of Moisture Stress in Plant Nutritional Functions

I. Water and Nutrient Availability

II. Biological Activity

III. Management Practices

IV Conclusions

References

Chapter 13 Soil—Plant Nutrient Relationships at Low pH Stress

I. Growth-Limiting Factors in Acid Soils

II. Deficiencies and Uptake Efficiencies of Nutrients in Crops

III. Management of Soil Acidity

IV Summary

References

Chapter 14 Plant Nutrient Interactions in Alkaline and Calcareous Soils

I. Geography and Character of Arid and Semiarid Region Soils

II. Alkaline Soils versus Fe Plant Nutrition

III. Salt-Affected Soils versus Crop Productivity

IV Summary

References

Glossary of Common and Scientific Names of Plants

Index


Details

No. of pages:
588
Language:
English
Copyright:
© Academic Press 1990
Published:
Imprint:
Academic Press
eBook ISBN:
9780323145169

About the Author

R Duncan