Download or read book The role of blue green algae in nitrogen fixation in rice fields written by P. K. De and published by . This book was released on 1939 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Blue green Algae and Rice written by P. A. Roger and published by Int. Rice Res. Inst.. This book was released on 1980 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: Record of the literature on blue-green algae and rice; Ecology of blue-green algae in paddy fields; Physiology of blue-green algae in paddy fields; Blue-green algae and the rice plant; Algalization.
Download or read book Biology of Rice fields Blue green Algae written by S. C. Santra and published by Daya Books. This book was released on 1993 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rice fields provide an ideal environment for harbouring Cyanobacteria (blue-green algae). A number of reports are now available to indicate a wide distributional spectrum of these organisoms under different soil and agroclimatic conditions. There is enough evidence that these rice fields cyanobacteria are capable of atmospheric nitrogen fixation in considerably large quantities and to some extent the organic matters. Thus the role of nitrogen fixing Cyanobacteria in the maintenance of the rice field soil fertility has been well sustained and documented. There is now positive evidence for the nitrogen fixing ability of more than 100 species of Cyanobacteria. During growth, Cyanobacteria liberate relatively large quantities of combined nitrogen mainly in the form of polypeptides with lesser amounts of free amino acids. Vitamins and auxin live substance. Approximately 40 to 50% of the algal nitrogen has been found to be recovered by the rice crop. These observations indicate the efficiency of these organisoms as a biological nitrogen source in a rice field ecosystem. In this book, a comprehensive floristic account on the rice field Cyanobacterial studies were attempted. In addition this book also offers an extensive discussion on isolation and cultural techniques and application in various fields. Contents Chapter 1: Biology of Blue-Green Algae (Cyanobacteria); Chapter 2: Isolation, Purification and Cultivation of Blue-Green Algae; Chapter 3: Taxonomic Enumeration of Rice-Fields Blue-Green Algae; Chapter 4: Importance of Blue-Green Algae.
Download or read book Blue green Algae for Rice Production written by G. S. Venkataraman and published by Food & Agriculture Org.. This book was released on 1981 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: Distribution and succession of blue-green algae in rice fields; Algal nitrogen fixation in rice soils; Methods for the assay of nitrogen fixation; Algal application and soil properties; Pesticides and blue-green algae; Crop-alga association; Establishment of blue-green algae in rice soils; Algal application and rice yield; Production of algae for field application; Recommendations for field application of blue-green algae; Economics of algal production and application; Indian State level organizational patthern for the transfer of blue-green algae technology; Elements of development programmes; Appendices: General features of blue-green algae; List of nitrogen-fixing blue-green algae; Keys to the orders and genera of some nitrogen-fixing blue-green algae; Description of the nitrogen-fixing blue-green algal genera; Culture media; Isolation and quantification procedures; Proforma for compiling information on the production and performance of algal fertilizer material.
Download or read book Nitrogen fixation in Indian rice fields written by Amrit Lal Singh and published by . This book was released on 1989 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Role of Blue green Algae in Nitrogen Economy of Indian Agriculture written by R. N. Singh (Botanist) and published by . This book was released on 1961 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Research on Algae Blue green Algae and Phototrophic Nitrogen Fixation at the International Rice Research Institute 1963 81 written by P. A. Roger and published by . This book was released on 1982 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Algal Biofertilizers and Rice Cultivation written by G. S. Venkataraman and published by . This book was released on 1972 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book In Situ Determination of Biological Nitrogen Fixation by Blue green Algae in Lowland Rice Fields written by Bonifacio V. Alimagno and published by . This book was released on 1974 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Role of Blue green Algae in Nitrogen fiscation in Rice Fields written by Pran Kumar De and published by . This book was released on 1938 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nitrogen Fixation by Blue Green Algae from Bangladesh Rice Field Soils written by Z. U. M. Khan and published by . This book was released on 1984 with total page 87 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 Environmental Role of Nitrogen fixing Blue green Algae and Asymbiotic Bacteria written by Ulf Granhall and published by . This book was released on 1978 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: The environmental role of asymbiotic N2-fixing blue-green algae and bacteria in aquatic habitats. The environmental role of asymbiotic N2-fixing blue-green algae and bacteria in terrestrial habitats. The environmental role of nitrogen-fixing symbiotic blue-green algae. Ecological and management aspects on nitrogen-fixing bacteria associated with non-nodulated plants.
Download or read book Microbiology of Tropical Soils and Plant Productivity written by Y.R. Dommergues and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 329 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is an established fact that we must continually increase and improve agricultural production if we are to meet even the minimum requirements of a growing popu lation for food, shelter, and fuel. In recent years, the introduction of new plant varieties and the extensive use of fertilizers have effectively increased crop yields, but intensifying agricultural methods has often led to depleting soil fertility. Two examples of the harmful consequences of intensive farming practices are the loss of up to 2.5 cm of topsoil every 15 years in the United States through erosion and the alarming rise in environmental pollution through widespread use of pesticides. Countless other processes affecting the activity of soil micro flora and the inter actions between microorganisms and plants may pose an equal danger to soil equilibrium, but their potential hazards are often overlooked because of an insufficient understanding of soil microbiology on the part of scientists. In the first published study of its kind, the authors of this book have attempted to address major aspects of the microbial activity of soil in the tropics. Tropical conditions serve as an ideal context for a discussion of soil microbiology, since biological processes in the soil are particularly active in tropical environments in comparison to other settings and in relation to physical and chemical processes.
Download or read book Application of Nitrogen fixing Systems in Soil Improvement and Management written by Y. A. Hamdi and published by Food & Agriculture Org.. This book was released on 1982 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biological nitrogen-fixation. Rhizoia-legume symbiosis. Ble-green alge. Free-livin nitrogen-fixing bacteria. Azolla. Nodulated non-leguminous plants. Some costs of biofertilizers.
Download or read book Nitrogen Fixation in Paddy Soils with Special Reference to the Blue Green Algae written by Michael Joachim Rajoo and published by . This book was released on 1976 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biological Nitrogen Fixation Associated with Rice Production written by Sisir K. Dutta and published by . This book was released on 1991 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt:
