Ecology and Management of Problem Soils in Asia PDF Download
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Author:
Publisher:
ISBN:
Category : Problem soils
Languages : en
Pages : 446
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Book Description
Author:
Publisher:
ISBN:
Category : Problem soils
Languages : en
Pages : 446
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Book Description
Author: Food and Agriculture Organization of the United Nations
Publisher: Food & Agriculture Org.
ISBN: 9789251034576
Category : Technology & Engineering
Languages : en
Pages : 272
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Book Description
Author: Bobby A. Stewart
Publisher: CRC Press
ISBN: 9781566700764
Category : Technology & Engineering
Languages : en
Pages : 578
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Book Description
The experiments and experiences discussed in Soil Management carefully document crop production systems with well-defined boundaries. These long-term agronomic trials provide a valuable data resource that has, until now, been largely ignored by both the research community and the sustainability experts. With a rigorous definition of sustainability and this data, the sustainability of various cropping systems will be more clearly illustrated than any previous effort. Particular emphasis is given to research involving the tropics and sub-tropics. This book is unique in providing an experimental basis for sustainable management of soil resources. It describes technological options for sustainable management of soil resources and identifies priorities for additional long-term experimentation needed in key ecoregions. Topics discussed include changes in soil processes and properties, environmental quality, soil management, soil dynamics, soil organic matter, and nutrient cycling. Soil Management is for those who ask whether agriculture is sustainable, want to analyze or review sustainability experiments and experiences, or wish to initiate new long-term trials. It is a valuable reference on soil processes and an excellent text for courses in soil management.
Author: Rattan Lal
Publisher: Springer Science & Business Media
ISBN: 9048195160
Category : Nature
Languages : en
Pages : 601
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Book Description
This book addresses an important topic of food security in South Asia with specific reference to climate change. Of the 1 billion food insecure people in the world, more than 30% are in South Asia. The problem of food insecurity may be exacerbated by the projected climate change especially because of the water scarcity caused by rapid melting of the glaciers in the Himalayas and increase in variability in monsoonal rains and frequency of extreme events. Furthermore, large populations of Bangladesh and other coastal regions may be displaced by sea level rise. Thus, this volume addresses recommended land use and soil/water/crop/vegetation management practices which would enable land managers to adapt to climate disruption by enhancing soil/ecosystem/social resilience. In addition to biophysical factors, this book also addresses the issues related to human dimensions including social, ethnical and political considerations.
Author: J. L. Sehgal
Publisher: Taylor & Francis
ISBN: 9789054107712
Category : Acid soils
Languages : en
Pages : 490
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Book Description
Author: International Council of Scientific Unions. Scientific Committee on Problems of the Environment
Publisher: Int. Rice Res. Inst.
ISBN: 9712200027
Category : Science
Languages : en
Pages : 495
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Book Description
This symposium organised by the International Rice Institute concentrate on the P requirement to optimize food and fiber production in the main rice-growing areas of the world using Asia and Oceanic data in a regional case study. Research gaps and needs are discussed
Author:
Publisher: IRRI
ISBN: 9711042169
Category : Agriculture
Languages : en
Pages : 732
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Book Description
Author: Robert J. Wright
Publisher: Springer Science & Business Media
ISBN: 9401134383
Category : Science
Languages : en
Pages : 1057
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Book Description
Soil acidity is a major limitation to crop production in many parts of the world. Plant growth inhibition results from a combination of factors, including aluminum, manganese, and hydrogen ion toxicities and deficiencies of essential elements, particularly calcium, magnesium, phosphorus, and molybdenum. Agricultural management practices and acid precipitation have increased acid inputs into the ecosystem and heightened concern about soil acidity problems. While application of lime has proved to be effective in ameliorating surface soil acidity in many areas, significant soil acidity problems still exist. Scientists from Alberta, Canada, recognized the need to provide a forum for researchers from different disciplines to exchange information and ideas on solving problems of plant growth in acid soils. As a result of their efforts, the First International Symposium on Plant-Soil Interactions at Low pH was held at Grande Prairie, Alberta, Canada, in July 1987. In many acid soil areas, liming materials are not readily available, the cost may be prohibitive, or subsoil acidity cannot be corrected by surface application of lime. New management approaches involving both the plant and the soil are needed in these situations. Progress has been made in the selection and breeding of acid-tolerant plants. However, continued progress will be limited by our lack of understanding of the physiological and biochemical basis of differential acidity tolerance among plants.
Author:
Publisher: Springer Science & Business Media
ISBN: 1461386608
Category : Technology & Engineering
Languages : en
Pages : 251
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Book Description
The world needs for food and fiber continue to increase. Population growth in the developing countries peaked at 2. 4% a year in 1965 and has fallen to about 2. 1%. However, in many developing countries almost half the people are under 15 years of age, poised to enter their productive and reproductive years. The challenges to produce enough food for this growing population will remain great Even more challenging is growing the food in the areas of greatest need. Presently the world has great surpluses of food and fiber in some areas while there are devastating deficiencies in other areas. Economic conditions and the lack of suitable infrastructure for distribution all too often limit the alleviation of hunger even when there are adequate supplies, sometimes even within the country itself. World hunger can be solved in the long run only by increasing crop production in the areas where the population is growing most rapidly. This will require increased efforts of both the developed and developing countries. Much of the technology that is so successful for crop production in the developed countries cannot be utilized directly in the developing countries. Many of the principles, however, can and must be adapted to the conditions, both physical and economic, of the developing countries.
Author: T. P. Tuong
Publisher: Int. Rice Res. Inst.
ISBN: 971220152X
Category : Rainfed lowland rice
Languages : en
Pages : 479
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Book Description
Overview; Tools and methodologies for biophysical characterization; Biophysical characterization and mapping; Characterizing biotic stresses; Socioeconomic characterization; Integrating biophysical and socioeconomic characterization.
