Download or read book Practical Application of Azolla for Rice Production written by W.S. Silver and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 227 pages. Available in PDF, EPUB and Kindle. Book excerpt: The production of rice has increased considerably in recent years due to the release of improved varieties and the adoption of better fertilization practices. Nevertheless, the production and use of inorganic N fertilizer involves costly investments in terms of energy and transport, the need for complex manufacturing plants, as well as the potential for environmental pollution. The use of agricultural systems that include dinitrogen fixing organisms appears to be an economically sound cultural practice. In the particular case of rice, biological nitrogen fixation by Azolla, blue-green algae (BGA), and heterotrophic microorganisms has long been recognized, in southeast Asia, as a fertilizer for rice culture. The Azolla-Anabaena association has the unique property of being able to retain a significant amount of nitrogenase activity in the presence of combined nitrogen, making the system compatible with inorganic nitrogen fertilization. Researchers working with Azolla (N fixation) are dispersed in 2 countries of southeast Asia, Africa, Europe and Latin America, making it difficult to share ideas, concepts and research results on a more personal basis. Considering the potential positive impact of growing rice in association with Azolla, and the lack, to date, of an international gathering of scientists dedicated to Azolla research, the First International Workshop on "Practical Applications of Azolla for Rice Production" was organized by the University of Puerto Rico-Mayaguez Campus.

Download or read book Practical Application of Azolla for Rice Production written by W. S. Silver and published by . This book was released on 2014-01-15 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Practical Application of Azolla for Rice Production written by W.S. Silver and published by . This book was released on 1984 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Azolla Biofertilizer for Sustainable Rice Production written by Sadasivam Kannaiyan and published by Daya Books. This book was released on 2005 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book entitled Azolla Biofertilizer for Sustainable Rice Production contains the valuable informations from the vast experiences of the authors Professor Dr S Kannaiyan and Dr K Kumar in the field of Azolla-Anabaena symbiosis for the past 25 years. It is written with the objective of providing basic knowledge and practical technologies on the effective utilization of Azolla as an ecofriendly and economically viable biofertilizer for sustainable rice production. It gives an access to the latest informations on the biology of Azolla, growth, sporulation, N2 fixation, ammonia assimilation and mineralization process in rice ecosystem. It offers a good deal of practical technologies for maximum exploitation of the potential status of Azolla biofertilizer viz., mass production techniques of fresh biomass, sporocarp inoculum, carrier based immobilized cyanobacterial inoculant, field application and methods for enhancing N use efficiency of this technology. It also covers the utilty of Azolla as supplemental animal feed and the economics of usage of Azolla as biofertilizer for rice. Illustrative colour photographs have been included in various chapters for easy understanding of the subject by readers. This book will be very useful for the scientists, researchers, postgraduate students, extension workers and voluntary organizations involved in the crop management technology for sustainable rice production. Contents Chapter 1: Azolla Biofertilizer: Potentials and Prospects; Chapter 2: Biological Fertilizers for Sustainable Crop Production in Rice Based System; Chapter 3: Origin of Azolla Cultivation; Chapter 4: Taxonomy and Morphological Characters of Azolla; Chapter 5: Biodiversity of Azolla and its Algal Symbiont Anabaena azollae as Revealed by Molecular and Immunological Studies; Chapter 6: Growth Rate and Doubling Time of Azolla; Chapter 7: Molecular Biology and Ultrastructures of Azolla Anabaena Symbiosis; Chapter 8: Algal Symbionts of Azolla; Chapter 9: Nutrition of Azolla; Chapter 10: Factors Influencing the Growth of Azolla; Chapter 11: Nitrogen Fixation by Azolla; Chapter 12: Assimilation of Carbon and Nitrogen in the Symbiotic Association of Azolla Anabaena System; Chapter 13: Sporulation Process in Azolla and Sporocarp Technology for Rice; Chapter 14: Azolla as Biofertilizer for Rice; Chapter 15: Immobilization of Cyanobacteria in Solid Matrix; Chapter 16: Ammonia Production by the Immobilized Cyanobacteria for Rice Crop; Chapter 17: Production and Application of Azolla Fresh Biomass and Sporocarp Inoculum for Rice; Chapter 18: Nitrification Inhibitors with Azolla on Nitrogen Use Efficiency in Rice Crop; Chapter 19: Pests of Azolla; Chapter 20: Black Rot Disease Interactions and Nitrogen Fixation in Azolla; Chapter 21: Azolla as Animal Feed; Chapter 22: Economic Analysis of Azolla Use.

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 Azolla Utilization written by and published by Int. Rice Res. Inst.. This book was released on 1987 with total page 305 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Simulation Models GIS and Nonpoint source Pollution written by David Holloway and published by . This book was released on 1992 with total page 780 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Applications of Continuous and Steady State Methods to Root Biology written by John G. Torrey and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 253 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides an excellent illustration of the interrelationship between progress in scientific methodology and conceptual advances, and its publica tion should contribute to further advances. It is well known that major advances in understanding often follow the development of new methods. The development of the acetylene reduction assay for nitrogenase activity provides a good example of this interrelationship between theory and methods. Theoretical knowledge led to a search for substrates for nitro genase that could be assayed for more easily than ammonium, the normal product of the enzyme. The discovery of the reduction of acetylene to ethylene by nitrogenase provided the ideal answer to the problem by provid ing a rapid, specific, nondestructive, and inexpensive assay for nitrogenase activity. This assay is now used by almost every laboratory doing research on nitrogen fixation. However, further use and development of the acetylene reduction assay has shown that it can underestimate nitrogenase activity and can even give incorrect relative values under some circumstances. The major problem is that exposure of legume nodules to acetylene can cause a large increase in the resistance to oxygen diffusion into the nodule. This reduced supply of oxygen decreases the rate of nitrogenase activity within a few minutes.

Download or read book Green Manures and Cover Crops 1979 May 1987 written by Jayne T. MacLean and published by . This book was released on 1987 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Quick Bibliography Series written by and published by . This book was released on 1986 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Farmer to Consumer Marketing written by Sheldon Cheney and published by . This book was released on 1986 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Biology and Management of the Floodwater Ecosystem in Rice Fields written by Pierre A. Roger and published by Int. Rice Res. Inst.. This book was released on 1996 with total page 269 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Imported fire ant 1983 May 1987 written by Evelyn A. Brownlee and published by . This book was released on 1987 with total page 536 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 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 Natural Wastewater Treatment Systems And Sustainability written by Nicholas F Gray and published by World Scientific. This book was released on 2021-10-04 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book deals with natural treatment systems and the challenges the water industry faces in dealing with sustainability and the realisation of reaching Net Zero by 2030.Surface waters are all under threat, with freshwater ecosystems now facing unprecedented levels of contamination, even after a century of ever stricter legislation and regulation. The increase in population and especially in urbanization without sufficient planning and investment to ensure adequate wastewater collection and treatment coupled with the need to reduce greenhouse gas emissions associated with wastewater treatment is leading to a crisis in wastewater treatment in many countries.Natural treatment systems which use plants and soil micro-organisms are very much nature-based solutions and wherever applicable might offer sustainable and low emissions options for a range of wastewater problems protecting surface waters as well as creating new habitats to support and enhance wildlife diversity. In terms of circularity, natural treatment systems have the potential to produce a staggering array of useful and valuable by-products, including high-value compounds for the pharmaceutical industry.Related Link(s)

Download or read book Algae and Human Affairs written by Carole A. Lembi and published by Cambridge University Press. This book was released on 1988 with total page 616 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume aims to provide a detailed synthesis of the major roles that algae play in human life. The book is divided into four parts covering both the valuable and detrimental effects of algae and the final section considers their current and future applications to industry and space exploration.

Download or read book Molecular Biology Of Symbiotic Nitrogen Fixation written by Peter M. Gresshoff and published by CRC Press. This book was released on 2018-01-18 with total page 595 pages. Available in PDF, EPUB and Kindle. Book excerpt: The core of the text is aimed at the research worker in the field of nitrogen fixation, but, despite its specialisation, does not lose the emphasis on teaching, both as a direct reference book and as a backbone for a graduate course on the subject.The closing part of the book includes a subject index and a glossary of terms. The latter was included not for the expert, for whom many of the definitions will be too general, but for the newcomer; the author hopes that the quick survey of key terms will help in the reading of this book.