Download or read book Nitrogen Economy of Flooded Rice Soils written by S.K. de Datta and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 191 pages. Available in PDF, EPUB and Kindle. Book excerpt: The steadily increasing cost of nitrogen fertilizer has resulted in more emphasis on basic and applied studies to improve nitrogen use efficiency in lowland rice. The efficiency of fertilizer nitrogen in farmers' fields is shockingly low ~ a luxury resource-scarce farmers in tropical Asia can ill afford. We believe it is critical to quantify the basic transformation processes and develop management practices for higher N use efficiency for two reasons. They are: 1. Nitrogen fertilizer together with water management is a key factor for achieving the yield potentials of modern rices. 2. Fertilizer nitrogen prices are high and most Asian rice farmers are poor. The International Rice Research Institute (IRRI), Philippines; Internation al Fertilizer Development Center (IFDC), USA; Commonwealth Scientific and Industrial Research Organization (CSIRO), Australia; U.S. Universities (Louisiana, Cornell, California, Arkansas and others); and Dr Justus Leibig University in West Germany are actively engaged in individual or collaborative research that addresses basic transformation processes on N gains and losses and management practices to maximize N use efficiency in rice. It is appropriate to update and summarize, in a double issue of Fertilizer Research, the 10 papers presented at the special symposium organized by the American Society of Agronomy (ASA) at the 75th Annual Meeting in Washington, D.C. in 1983. S.K. De Datta, Head of Agronomy Department, IRRI, was chairman of the International Agronomy Division of ASA (A-6) in 1982 and 1983.
Download or read book Nitrogen Economy of Flooded Rice Soils written by S K De Datta and published by . This book was released on 1986-07-31 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nitrogen Economy of Flooded Rice Soils written by Debatta S. K. and published by . This book was released on 1986 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Double Special Issue on Nitrogen Economy of Flooded Rice Soils written by S. K. De Datta and published by . This book was released on 1986 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nitrogen Economy in Tropical Soils written by N. Ahmad and published by Springer Science & Business Media. This book was released on 1996-10-31 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reports on recent research designed to help increase the productivity of scarce tropical farmland without damaging the environment by gaining a better understanding of the chemical, biological, and ecological aspects of relationships between the critical element nitrogen in plants and soils. Describes the use of isotopically- labeled nitrogen in experimentation, the impact of the tropical environment on nitrogen transformation in the soil, annual fluctuations of native available soil nitrogen, the interaction of major fertilizers with different soils, the role of micro-flora in nitrogen availability, the behavior of applied nitrogen in wet and submerged soils, and advances in nitrogen-fixing by Rhizobium- legume symbiosis. All but 10 of the 42 papers are reprinted from Fertilizer Research vol. 42 nos. 1-3 (1995). No index. Annotation copyrighted by Book News, Inc., Portland, OR
Download or read book Nitrogen Economy of Flounded Rice Soils written by De Datta S K. and published by . This book was released on 1979 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Carbon and Nitrogen Dynamics in Flooded Soils written by G. J. D. Kirk and published by Int. Rice Res. Inst.. This book was released on 2000 with total page 195 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Efficiency of Nitrogen Fertilizers for Rice written by International Network on Soil Fertility and Fertilizer Evaluation for Rice. Meeting and published by Int. Rice Res. Inst.. This book was released on 1987 with total page 267 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Strategic Soil Nitrogen Test for Flooded Rice written by John Francis Angus and published by . This book was released on 2000 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The overall objective is to develop a commercial test to predict soil N supply to rice"--P. 3.
Download or read book Nitrogen Economy in Tropical Soils written by N. Ahmad and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nitrogen Economy in Tropical Soils presents an authoritative and comprehensive state-of-the-art review on soil/plant nitrogen inter-relationships, with special reference to tropical soils and crops in aerobic and anaerobic environments. Use of isotopically labelled nitrogen in experimentation, especially in tropical environments, and recently developed analytical techniques for soil and plant materials are presented. An important aspect is the emphasis placed on the impact of the tropical environment on nitrogen transformations in the soil environment. This book should be an excellent source of information for senior undergraduate and graduate students with interest in soil/plant nitrogen inter-relationships, and for all levels of research workers in these fields.
Download or read book Paddy Nitrogen Economy written by Sorasith Vacharotayan and published by . This book was released on 1983 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Transformations and Transport of Applied NH4 nitrogen in Flooded Rice Culture written by Ibrahim Mustafa Bilal and published by . This book was released on 1974 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nitrogen Economy of Irrigated Rice written by Hein F. M. ten Berge and published by . This book was released on 1994 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Conceptual Nitrogen Model for Flooded Rice Culture written by Linda Plummer Wagenet and published by . This book was released on 1975 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nitrogen and Rice written by International Rice Research Institute and published by . This book was released on 1979 with total page 522 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Contains the papers presented at the symposium, summaries of discussions and the recommendation remarks for further research and international cooperation."--Foreword.
Download or read book Rice written by Bor S. Luh and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 853 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rice is one of the principal cereals used by the world's inhabitants. The hope for improved nourishment of the world's population depends on the development of better rice varieties and improved methods for rice production and utilization. During the past four decades, interest in rice research and production has increased in many countries. The development of new and better varieties by the International Rice Research Institute in the Philippines and other rice research institutes has stimulated numerous research stations to test the performance of these varieties in many countries under different climates, soil properties, cultural practices, and environmental conditions. The methods of harvesting, handling, drying, and milling rough rice have improved as a result of research efforts by the engineers and the rice milling industries. The first edition of Rice: Production and Utilization was published in 1980. This second edition presents the recent developments and progress made by the researchers, the industries, and various experiment stations. Because of the large amounts of literature available in recent years on rice production and utilization, this edition is divided into two volumes, Volume 1: Production and Volume II: Utilization. It is hoped that the books will be useful to rice researchers, processors, and people interested in rice production and utilization. Those studying v vi PREFACE the agronomy of rice plants, especially the genetics, breeding, cultivation, diseases, and insects that attack both the rice plant and the stored grain, will find this edition helpful in their search for new knowledge.
Download or read book Rice written by Achim Dobermann and published by Int. Rice Res. Inst.. This book was released on 2000 with total page 203 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rice ecosystems; Nutrient management; Mineral deficiencies; Mineral toxicities; Tools and information.
