Overview

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.

Full Product Details

Author:   Nand Kumar Fageria
Publisher:   Taylor & Francis Ebooks
Imprint:   CRC Press
ISBN:  

9781482222852

ISBN 10:   148222285
Pages:   436
Publication Date:   12 June 2014
Audience:   General/trade ,  College/higher education ,  General ,  Tertiary & Higher Education
Format:   Electronic book text
Publisher's Status:   Active
Availability:   Available To Order  
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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

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Author Information

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 Agropecuaria (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.

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