Author: P. A. RogerPublisher:
ISBN:
Category : Cyanobacteria
Languages : en
Pages : 20
Book Description
Methods for Studying Blue-green Algae in Ricefields
Author: P. A. RogerPublisher:
ISBN:
Category : Cyanobacteria
Languages : en
Pages : 20
Book Description
Blue-green Algae and Rice
Author: P. A. RogerPublisher: Int. Rice Res. Inst.
ISBN: 971104028X
Category : Algae
Languages : en
Pages : 116
Book Description
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.
Biology and Management of the Floodwater Ecosystem in Rice Fields
Author: Pierre A. RogerPublisher: Int. Rice Res. Inst.
ISBN: 971220068X
Category : Flood-Rice field
Languages : en
Pages : 269
Book Description
Methods of Soil Analysis, Part 2
Author: Peter J. BottomleyPublisher: John Wiley & Sons
ISBN: 089118810X
Category : Technology & Engineering
Languages : en
Pages : 1152
Book Description
One of the primary references on analytical methods in soil science, Part 2 of the Methods series will be useful to all biogeoscientists, especially those with an interest in microbiology or bioremediation.
Blue-green Algae for Rice Production
Author: G. S. VenkataramanPublisher: Food & Agriculture Org.
ISBN: 9789251011072
Category : Technology & Engineering
Languages : en
Pages : 116
Book Description
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.
Microbiology of Tropical Soils and Plant Productivity
Author: Y.R. DommerguesPublisher: Springer Science & Business Media
ISBN: 9789024726240
Category : Nature
Languages : en
Pages : 346
Book Description
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.
Rice Research Strategies for the Future
Author: Publisher: Int. Rice Res. Inst.
ISBN: 9711040611
Category : Rice
Languages : en
Pages : 561
Book Description
The Ecology of Cyanobacteria
Author: B.A. WhittonPublisher: Springer Science & Business Media
ISBN: 0306468557
Category : Science
Languages : en
Pages : 718
Book Description
Cyanobacteria make a major contribution to world photosynthesis and nitrogen fixation, but are also notorious for causing nuisances such as dense and often toxic `blooms' in lakes and the ocean. The Ecology of Cyanobacteria: Their Diversity in Time and Space is the first book to focus solely on ecological aspects of these organisms. Its twenty-two chapters are written by some thirty authors, who are leading experts in their particular subject. The book begins with an overview of the cyanobacteria - or blue-green algae, for those who are not specialists - then looks at their diversity in the geological record and goes on to describe their ecology in present environments where they play important roles. Why is one of the key groups of organisms in the Precambrian still one of the most important groups of phototrophs today? The importance of ecological information for rational management and exploitation of these organisms for commercial and other practical purposes is also assessed. Accounts are provided of nuisances as well as the ecology of the commercially successful Spirulina and the role of cyanobacteria in ecosystem recovery from oil pollution. Many chapters include aspects of physiology, biochemistry, geochemistry and molecular biology where these help general understanding of the subject. In addition there are three chapters dealing specifically with molecular ecology. Thirty-two pages of colour photos incorporate about seventy views and light micrographs. These features make the book valuable to a wide readership, including biologists, microbiologists, geologists, water managers and environmental consultants. The book complements the highly successful The Molecular Biology of Cyanobacteria already published by Kluwer.
Impact of Pesticides on Farmer Health and the Rice Environment
Author: Prabhu L. PingaliPublisher: Int. Rice Res. Inst.
ISBN: 0792395212
Category : Business & Economics
Languages : en
Pages : 678
Book Description
The book covers the various aspects of the use of pesticides, their behavior, degradation, and impacts in wetland ricefields, and presents the results of surveys conducted in the Philippines and Thailand. It includes both bibliographic reviews and selected aspects of the experimental results of a research project on pesticide impacts in wetland ricefields. The first phase of the `Pesticide Impact' project was developed in the Philippines from 1989 to 1991. It was a multidisciplinary/collaborative approach involving scientists from IRRI, NRI (England), ORSTOM (France), UPLB (Philippines) who studied the effects of pesticides on the environment and on farmers' health, and the economical aspects of their use.
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