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Author:
Publisher:
ISBN:
Category : Soil science
Languages : en
Pages : 436
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Book Description
Author:
Publisher:
ISBN:
Category : Soil science
Languages : en
Pages : 436
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Book Description
Author:
Publisher:
ISBN:
Category : Groundwater
Languages : en
Pages : 814
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Book Description
Author:
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ISBN:
Category : Agriculture
Languages : en
Pages : 1312
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Author:
Publisher:
ISBN:
Category : Soil conservation
Languages : en
Pages : 706
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Author:
Publisher:
ISBN:
Category : Fertilizers
Languages : en
Pages : 822
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Book Description
Author:
Publisher:
ISBN:
Category : Soil science
Languages : en
Pages : 388
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Book Description
Author:
Publisher: International Publications Service
ISBN:
Category : Political Science
Languages : en
Pages : 1772
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Book Description
Author: Patrick Lavelle
Publisher: Oxford University Press, USA
ISBN:
Category : Science
Languages : en
Pages : 328
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Book Description
This book covers all aspects of the ecology of tropical earthworm communities and their effects on soil properties and plant growth. It examines the latest methods and technologies for their management and includes work from leading experts in Europe, South and Central America, Africa, and Asia.
Author:
Publisher: World Bank Publications
ISBN: 9780195209921
Category : Business & Economics
Languages : en
Pages : 268
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Book Description
World Development Report 1994 examines the link between infrastructure and development and explores ways in which developing countries can improve both the provision and the quality of infrastructure services. In recent decades, developing countries have made substantial investments in infrastructure, achieving dramatic gains for households and producers by expanding their access to services such as safe water, sanitation, electric power, telecommunications, and transport. Even more infrastructure investment and expansion are needed in order to extend the reach of services - especially to people living in rural areas and to the poor. But as this report shows, the quantity of investment cannot be the exclusive focus of policy. Improving the quality of infrastructure service also is vital. Both quantity and quality improvements are essential to modernize and diversify production, help countries compete internationally, and accommodate rapid urbanization. The report identifies the basic cause of poor past performance as inadequate institutional incentives for improving the provision of infrastructure. To promote more efficient and responsive service delivery, incentives need to be changed through commercial management, competition, and user involvement. Several trends are helping to improve the performance of infrastructure. First, innovation in technology and in the regulatory management of markets makes more diversity possible in the supply of services. Second, an evaluation of the role of government is leading to a shift from direct government provision of services to increasing private sector provision and recent experience in many countries with public-private partnerships is highlighting new ways to increase efficiency and expand services. Third, increased concern about social and environmental sustainability has heightened public interest in infrastructure design and performance.
Author: J.K. Ladha
Publisher: Int. Rice Res. Inst.
ISBN: 0792334132
Category : Nature
Languages : en
Pages : 300
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Book Description
Reprinted from Plant and Soil, v.174, nos.1-2 (1995), this volume is devoted to discussions on the role of biological nitrogen fixation (BNF) in agricultural sustainability. Papers presented on BNF in crop forage and tree legumes are augmented with discussion of integrated farming systems involving BNF, soil and N management, and recycling of legume residues. BNF by non-legumes is discussed and attempts to transform cereals into nodulating plants are critically reviewed. Also described are advances in the development of new methodologies to understand symbiotic interactions and to assess N-2 fixation in the field; means of enhancing BNF through plant and soil management; breeding and selection; problems encountered in exploiting BNF under farmers' field conditions; and promising approaches to improve BNF exploitation. Lacks a subject index. Annotation copyright by Book News, Inc., Portland, OR
