Nitrogen Management in Crop Production: 1st Edition (Paperback) book cover

Nitrogen Management in Crop Production

1st Edition

By Nand Kumar Fageria

CRC Press

436 pages | 19 Color Illus. | 127 B/W Illus.

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Description

One of the main approaches for safeguarding food security, sustainable development has increased demand for knowledge on fertilizer management in crop production. Among essential plant nutrients, nitrogen is one of the most important yield-limiting nutrients, mainly responsible for determining yield and yield components in cereals and legumes. It is also responsible for the activation of many enzymes and, of course, plays an important role in photosynthesis. With a recovery efficiency of less than 50 percent in most cropping systems, a large portion of the nitrogen applied as fertilizer is not used by plants, creating environmental and economic issues.

Nitrogen Management in Crop Production covers the critical aspects for the judicious use of nitrogen in cropping systems. This includes appropriate methods of nitrogen application, effective source and timing of application during crop growth cycles, use of an adequate application rate to avoid loss and reduce cost, use of nitrogen-efficient crop genotypes, and use of legumes that fix sufficient amounts of atmospheric nitrogen. There is also a chapter on organic matter and its role in sustainability.

This book presents recent information from the international literature, making it relevant for most agroecological regions. Chapters provide experimental results to aid in practical application of the information. The book contains color photos of nitrogen deficiency symptoms to serve as a guide for important crop species, such as rice, dry bean, wheat, soybean, and corn. It also includes numerous tables and figures, providing an easy-to-read reference.

Reviews

"The book is both detailed and wide-reaching in its coverage of the role of nitrogen in crop-production systems and embraces issues such as crop rotation, tillage systems and the effect of soil erosion on nitrogen within the system. …a very readable and comprehensive guide to nitrogen use in annual crops."

—N. Cannon, in European Journal of Soil Science

Table of Contents

Functions of Nitrogen in Crop Plants

Introduction

Functions.

Conclusions

References

Nitrogen Losses in Soil–Plant System

Introduction

Cycle in Soil–Plant System

Losses through Ammonia Volatilization

Losses through Denitrification

Losses through Leaching

Losses through Soil Erosion

Losses through Ammonia Volatilization from Foliage

Factors Affecting Nitrogen Losses

Management Practices to Reduce Nitrogen Losses

Conclusions

References

Diagnostic Techniques for Nitrogen Requirements in Crop Plants

Introduction

Nitrogen Deficiency, Sufficiency, and Toxicity Diagnostic Techniques.

Soil Test

Plant Tissue Test

Use of Chlorophyll Meter

Nitrogen Harvest Index

Plant Response to Applied Nitrogen

Conclusions

References

Management of Soil Organic Matter

Introduction

SOM-Relate

SOM Fractions

OM Content of the Soil

OM versus Soil Physical Properties

OM versus Soil Chemical Properties

OM versus Soil Biological Properties

Management Practices to Improve/Stabilize OM in Soil

OM versus Environment

SOM versus Crop Yields

Conclusions

References

Nitrogen Use Efficiency in Crop Plants

Introduction

Definitions of Nutrient-Efficient Plants and Nitrogen Use

Efficiency

Conclusions

References

Nitrogen Interaction with Other Nutrients

Introduction

Interaction of Nitrogen with Macronutrients

Interaction of Nitrogen with Micronutrients

Nitrogen versus Soil Salinity and Alkalinity

Conclusions

References

Biological Nitrogen Fixation by Legumes

Introduction

Mechanism of Nodule Formation

Biochemistry of Nitrogen Fixation

Quantity of Nitrogen Fixation by Legumes

Methods of Assessing Nitrogen Fixation

Factors Affecting Dinitrogen Fixation

Strategies to Enhance Biological Nitrogen Fixation

Conclusions

References

Management Practices to Improve Nitrogen Use Efficiency in Crop Plants

Introduction

Soil Management Practices

Nitrogen Fertilizer Management Practices

Crop Management Practices

Plant Management Practices

Quantitative Genetics and Molecular Approach to Improve Nitrogen Use Efficiency

Conclusions

References

About the Author

Dr. N. K. Fageria, Doctor of Science in agronomy, is a senior research soil scientist at the National Rice and Bean Research Center, Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA), since 1975. Dr. Fageria is a nationally and internationally recognized expert in the area of mineral nutrition of crop plants and a research fellow and ad hoc consultant of the National Council for Scientific and Technological Development (CNPq) since 1989. Dr. Fageria is the author or co-author of 12 books and more than 320 scientific journal articles, book chapters, review articles, and technical bulletins. He is a member of editorial board of the Journal of Plant Nutrition and the Brazilian Journal of Plant Physiology.

Subject Categories

BISAC Subject Codes/Headings:
SCI011000
SCIENCE / Life Sciences / Botany
SCI086000
SCIENCE / Life Sciences / General
TEC003000
TECHNOLOGY & ENGINEERING / Agriculture / General