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Nitrogen Economy Of Flooded Rice Soils
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Book Synopsis Nitrogen Economy of Flooded Rice Soils by : S.K. de Datta
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.
Book Synopsis Nitrogen Economy of Flooded Rice Soils by : S K De Datta
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:
Book Synopsis Nitrogen Economy in Tropical Soils by : N. Ahmad
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.
Author :International Network on Soil Fertility and Fertilizer Evaluation for Rice. Meeting Publisher :Int. Rice Res. Inst. ISBN 13 :971104174X Total Pages :267 pages Book Rating :4.7/5 (11 download)
Book Synopsis Efficiency of Nitrogen Fertilizers for Rice by : International Network on Soil Fertility and Fertilizer Evaluation for Rice. Meeting
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:
Book Synopsis Carbon and Nitrogen Dynamics in Flooded Soils by : G. J. D. Kirk
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:
Book Synopsis A Strategic Soil Nitrogen Test for Flooded Rice by : John Francis Angus
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.
Book Synopsis Plant and Soil Interfaces and Interactions by : A. van Diest
Download or read book Plant and Soil Interfaces and Interactions written by A. van Diest and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 367 pages. Available in PDF, EPUB and Kindle. Book excerpt: Forty years ago, when PLANT AND SOIL first appeared, Europe was still recovering from the devastating effects of World War II. During the war years, work in many centres of agricultural research had come to a virtual standstill. Buildings and equipment were destroyed, scientists were often forced to terminate their research and teaching activities and funds allocated to such work were diverted to other, at that time, more pressing needs. During the first post-war years reconstruction was undertaken with great zeal and in that light the founding of the new journal PLANT AND SOIL must be viewed. In the pre-war period most agricultural science journals were still primarily national ones and consequently many articles were published in languages mastered by only a limited number of potential readers. In small countries whose languages are not widely understood, the desire arose to publish research findings in one of the major languages. It is therefore understandable that in the early years of the journal's existence, large portions of PLANT AND SOIL were filled with articles from the Scandinavian countries and The Nether lands. Originally, rather frequent use was made of the opportunity to publish also in German and French, but with the advance of English as a major language of communication, a decline was noticeable in the number of German and French manuscripts submitted. As a consequence the Edi torial Board has recently decided to terminate the publishing of articles in these languages.
Book Synopsis Nitrogen Economy of Irrigated Rice by : Hein F. M. ten Berge
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:
Book Synopsis Biological Nitrogen Fixation Associated with Rice Production by : Mustafizur Rahman
Download or read book Biological Nitrogen Fixation Associated with Rice Production written by Mustafizur Rahman and published by Springer Science & Business Media. This book was released on 2013-04-09 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biological nitrogen fixation (BNF) has become important in rice farming systems because this process diminishes the need for expensive chemical fertilizers which have been associated with numerous health and environmental problems. The extensive exploitation of BNF would provide economic benefits to small farmers, avoiding all malign influences of chemical fertilizers. Meanwhile, advances in biotechnology have brought rice genetics to the threshold of new opportunities for increasing rice production. This volume focuses, in six different sessions, on the role of BNF in the improvement of rice production in the light of the current state of the art of BNF technology transfer and diffusion. New ideas on BNF technology in research, extension information and inoculant technology are also included, together with the socio-economic impacts of using BNF in rice farm systems.
Download or read book Advances in Soil Science written by and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soil is formed from physical and chemical weathering of rocks - processes described historically because they involve eons of time-by glaciation and by wind and water transport of soil materials, later deposited in deltas and loessial planes. Soil undergoes further transformations over time and provides a habitat for biological life and a base for the development of civilizations. Soil is dynamic -always changing as a result of the forces of nature and particularly by human influences. The soil has been studied as long as history has been documented. Numerous references to soil are found in historical writings such as Aristotle (384-322 B. c. ), Theophrastus (372-286 B. c. ), Cato the Elder (234-149 B. C. ) and Varro (116-27 B. c. ). Some of the earliest historical references have to do with erosional forces of wind and water. The study of soils today has taken on increased importance because a rapidly expanding population is placing demands on the soil never before experienced. This has led to an increase in land degradation and desertification. Desertifica tion is largely synonymous with land degradation but in an arid land context. Deterioration of soil resources is largely human induced. Poverty, ignorance, and greed are the indirect causes of desertification. The direct cause is mismanage ment of the land by practices such as overgrazing, tree removal, improper tillage, poorly designed and managed water distribution systems, and overexploitation.
Book Synopsis Biological Nitrogen Fixation for Sustainable Agriculture by : J.K. Ladha
Download or read book Biological Nitrogen Fixation for Sustainable Agriculture written by J.K. Ladha and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chemical fertilizers have had a significant impact on food production in the recent past, and are today an indispensable part of modern agriculture. On the other hand, the oil crisis of the 1970s and the current Middle East problems are constant reminders of the vulnerability of our fossil fuel dependent agriculture. There are vast areas of the developing world where N fertilizers are neither available nor affordable and, in most of these countries, balance of payment problems have resulted in the removal of N fertilizer subsidies. The external costs of environmental degradation and human health far exceed economic concerns. Input efficiency of N fertilizer is one of the lowest and, in turn, contributes substantially to environmental pollution. Nitrate in ground and surface waters and the threat to the stability of the ozone layer from gaseous oxides of nitrogen are major health and environmental concerns. The removal of large quantities of crop produce from the land also depletes soil of its native N reserves. Another concern is the decline in crop yields under continuous use of N fertilizers. These economic, environmental and production considerations dictate that biological alternatives which can augment, and in some cases replace, N fertilizers must be exploited. Long-term sustainability of agricultural systems must rely on the use and effective management of internal resources. The process of biological nitrogen fixation offers and economically attractive and ecologically sound means of reducing external nitrogen input and improving the quality and quantity of internal resources. In this book, we outline sustainability issues that dictate an increased use of biological nitrogen fixation and the constraints on its optimal use in agriculture.
Book Synopsis Nitrogen Fertilization in the Environment by : Peter Bacon
Download or read book Nitrogen Fertilization in the Environment written by Peter Bacon and published by CRC Press. This book was released on 1995-01-23 with total page 630 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study examines the interactions between nitrogen and the ecosystem and discusses nitrogen fertilization practices around the world. Simulation models that play an important role in determining the dynamics of source-sink relationships are presented, helping to pinpoint inefficiencies and develop strategies to synchronize nitrogen supply and demand.
Download or read book Rice Farming Systems written by and published by Int. Rice Res. Inst.. This book was released on 1989 with total page 385 pages. Available in PDF, EPUB and Kindle. Book excerpt: Egyptian rice research and training center inaugural; Rice in Egyptian and global agriculture in 2000; New dimensions for genetic improvement in rice; Strategies in rice crop management; New directions for rice farming systems; Biotechnology and rice improvement; Postharvest technology and by-product utilization for rice; Recent accomplishments in rice research in Egypt.
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.
Book Synopsis Proceedings of the Second Temperate Rice Conference by : J. E. Hill
Download or read book Proceedings of the Second Temperate Rice Conference written by J. E. Hill and published by Int. Rice Res. Inst.. This book was released on 2002 with total page 709 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rice biotechnology; Rice genomics; Rice and the environment; Agronomy; Diseases; Entomology; Genetics; Quality; Weed science.
Author :International Rice Research Institute Publisher :Int. Rice Res. Inst. ISBN 13 :9712200736 Total Pages :991 pages Book Rating :4.7/5 (122 download)
Book Synopsis Fragile Lives in Fragile Ecosystems by : International Rice Research Institute
Download or read book Fragile Lives in Fragile Ecosystems written by International Rice Research Institute and published by Int. Rice Res. Inst.. This book was released on 1995 with total page 991 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fragile lives in fragile ecosystems: Feeding the world's poor from neglected rice ecosystems was the theme of the 1995 International Rice Research Conference. During the February meeting, participants assessed progress in rice research and identified new research approaches for reducing constraints and improving productivity and sustainability of less favored and fragile rice producing areas - these are the upland, rainfed lowland, and flood-prone ecosystems.
