Slow - And Controlled-release And Stabilized Fertilizers: An Option For Enhancing Nutrient Efficiency In Agriculture

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Paris: International Fertilizer Industry Association (IFA), 2010. - 160 pp. ISBN 978-2-9523139-7-1.This book is a revision of the IFA publication Improving Fertilizer Use Efficiency: Controlled-Release and Stabilized Fertilizers in Agriculture by the same author, published in 1997. It is intended for use by the fertilizer industry, policy makers and scientists. The main objectives of the book are to: - Provide an up-to-date state of scientific knowledge on issues related to the development, production and use of slow- and controlled-release and stabilized fertilizers; - Explain the importance of slow- and controlled-release and stabilized fertilizers to improve nutrient use efficiency; - Present slow- and controlled-release and stabilized fertilizer products that are currently available; - Assess the current market and prospects for slow- and controlled-release and stabilized fertilizers; and - Discuss the policy and regulatory frameworks needed to maximize the benefits from using slow- and controlled-release and stabilized fertilizers. This book is a contribution to IFA’s efforts to promote nutrient stewardship through the use of the right product(s) at the right rate, right time and right place (IFA, 2009). <strong> C o n t e n t s. About the book and the author. Acknowledgements. Abbreviations, acronyms and symbols. Introduction. Definitions of slow- and controlled-release fertilizers and nitrification and urease inhibitors. Slow- and controlled-release fertilizers. Nitrification inhibitors. Urease inhibitors. <strong>Development and manufacture of slow- and controlled-release fertilizers and nitrification and urease inhibitors. Slow- and controlled-release fertilizers. Nitrification and urease inhibitors. <strong>Characteristics and types of slow- and controlled-release fertilizers and nitrification and urease inhibitors. Characteristics of slow- and controlled-release fertilizers. Characteristics of nitrification inhibitors. Characteristics of urease inhibitors. <strong>Advantages and disadvantages of slow- and controlled-release fertilizers and nitrification and urease inhibitors. Advantages. Disadvantages. <strong>Options for the application of slow- and controlled-release fertilizers and nitrification and urease inhibitors. Slow- and controlled-release fertilizers. Nitrification inhibitors. Urease inhibitors. Nitrification and urease inhibitors in tropical crops. <strong>Environmental aspects of slow- and controlled-release fertilizers and nitrification and urease inhibitors. Slow-and controlled-release fertilizer. Nitrification inhibitors. Urease inhibitors. <strong>Consumption and economics of slow- and controlled-release and nitrification and urease inhibitors. Consumption. Costs and benefits of slow- and controlled-release fertilizers and nitrification and urease inhibitors. <strong>Legislation and registration. Slow- and controlled-release fertilizers. Nitrification inhibitors. Urease inhibitors. <strong>Research. Slow- and controlled-release fertilizers. Nitrification and urease inhibitors. <strong>Addendum. Manufacturers and distributors of slow- and controlledrelease fertilizers and nitrification and urease inhibitors. Urea reaction products/slow-release fertilizers. Coated/encapsulated controlled-release fertilizers. Nitrification inhibitors. Urease inhibitors. <strong>Annex I. Methods used to test controlled-release fertilizers in Japan. Annex II. Laboratory methods used to test slow- and controlled-release fertilizers in China. References.

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