Workshop on the Management of Low Fertility Acid Soils of the American Humid Tropics PDF Download

Author: J. F. Wienk
Publisher: IICA
ISBN:
Category :
Languages : en
Pages : 228

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Author:
Publisher: Bib. Orton IICA / CATIE
ISBN:
Category :
Languages : en
Pages : 228

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Author: J. F. Wienk
Publisher:
ISBN:
Category : Acid soils
Languages : en
Pages : 226

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Author: José M. Toledo
Publisher: CIAT
ISBN: 9788489206793
Category : Technology & Engineering
Languages : en
Pages : 396

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Botanical description and natural distribution of Andropogon gayanus; Genetics and plant breeding of Andropogon gayanus; Range of adaptation of Andropogon gayanus; Physiological aspects of Andropogon gayanus and its compatibility with legumes; Nutritional requirements of Andropogon gayanus; The agronomy of Andropogon gayanus; Pest and disease problems of Andropogon gayanus; Establishment and initial development of Andropogon gayanus pastures in tropical savannas; Quality of Andropogon gayanus and animal productivity; Seed production of Andropogon gayanus; Release and initial evidense of adoption and impact of Andropogon gayanus in Tropicla America; Research priorities for the study of Andropogon gayanus.

Author: Rodelio B. Carating
Publisher: Springer Science & Business
ISBN: 9401786828
Category : Nature
Languages : en
Pages : 363

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The first soil survey in the Philippines was done by Mr. Clarence Dorsey, an American soil scientist in the province of Batangas in 1903. The Soils of the Philippines, however, is the first comprehensive summary of more than a century of soil-survey work in this country. It integrates the soil concepts of the reconnaissance soil-survey results, which commenced as early as 1934 and continued until the mid 1960s, with the semi-detailed soil surveys that continue to this day. The result is the first-ever genetic key for classifying Philippine soils at soil series level; thus, making it possible for any newcomers to the soil survey field to confidently produce their own soil map, at a more detailed map scale, to suit the project requirements. This book brings together discussions on soils and soil mapping units and up-to-date international techniques and technologies. It makes soils relevant to current political realities and national issues. As soil survey moves from a reductionist agricultural-development planning tool to a more holistic and integrated approach, to enable us to understand our dynamic and complex environment, The Soils of the Philippines will be the only source of authoritative and updated data on soil resources for macro-level resource management planning for decades to come. With a vanishing breed of experienced soil surveyors, not only in the Philippines but also worldwide, it may remain the only book on Philippine soils for the next hundred years or more. Since soils follow a geological and not a human time frame, the contents of this volume will stay relevant for soil surveyors even in a fast changing world. As the country leaps from an agricultural economy towards modernization and a more diversified economic base, some of the soil series in the Philippines, for example the Guadalupe series underlying the skyscrapers of Makati City, are becoming extinct as a result of urban development. Therefore, this book serves as the repository for the soils that we possess, the soils that have been lost through decades of urbanization while, at the same time, it creates a soil classification system for the soils we are yet to discover.

Author: Emilio F Moran
Publisher: Routledge
ISBN: 1000315932
Category : Political Science
Languages : en
Pages : 277

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Book Description
This book--the first to apply the combined approaches of anthropology, geography, ecology, economics, and sociology to the analysis of the Amazon River region and its imminent development--explores the impact of development on Amazonian populations and the results of rural and urban growth strategies. The authors use the methodologies of environmen

Author: Francis E. Putz
Publisher:
ISBN:
Category : Forest management
Languages : en
Pages : 356

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Author: P.E. Ouboter
Publisher: Springer Science & Business Media
ISBN: 9401120706
Category : Science
Languages : en
Pages : 318

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Book Description
Since the limnological research on the man-made Brokopondo Reservoir in the 'sixties, numerous data have been collected on the ecology of Surinam rivers and swamps. This book is a compilation of these data: it is the first comprehensive survey of the aquatic ecology of one of the peripheral areas of Amazonia. The geomorphology of the country, situated on the Guyana Shield, is the main factor determining the limnological properties of rivers and creeks. This results in an overall picture that is quite different from Amazonia. The emphasis of The Ecosystems of Suriname is on the living aquatic resources, including aquatic and swamp vegetation, phyto and zooplankton, macroinvertebrates, fish, amphibians, reptiles and mammals. Although most of Suriname is still in a pristine state, the human impact on fresh waters is considerable in those areas of rapid economic development, emphasizing the necessity of conservation measures, specially tailored for aquatic ecosystems. The Ecosystems of Suriname is a valuable acquisition for all scientists, environmental managers and others interested in tropical aquatic ecology.

Author:
Publisher:
ISBN:
Category : Forest management
Languages : en
Pages : 488

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Publisher: Food & Agriculture Org.
ISBN: 9789251021217
Category : Business & Economics
Languages : en
Pages : 220

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Book Description
Eight papers from an informal meeting, dealing with examples from Asia, Africa and Latin-America