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Registro completo
Provedor de dados:  AgEcon
País:  United States
Título:  Economic gains of improving soil fertility and water holding capacity with clay application: the impact of soil remediation research in northeast Thailand
Autores:  Saleth, Rathinasamy Maria
Inocencio, Arlene
Noble, Andrew D.
Ruaysoongnern, Sawaeng
Data:  2009-08-26
Ano:  2009
Palavras-chave:  Soil improvement
Impact assessment
Research projects
Soil fertility
Sandy soils
Water holding capacity
Clay soils
Soil water relations
Soil management
Farming systems
Crop yield
Vegetable crops
Statistical methods
Cost benefit analysis
Economic analysis
Economic aspects
Agricultural Finance
Crop Production/Industries
Environmental Economics and Policy
Farm Management
Land Economics/Use
Production Economics
Productivity Analysis
Research and Development/Tech Change/Emerging Technologies
Research Methods/ Statistical Methods
Resumo:  Declining productivity of agricultural soils in Northeast Thailand is a challenge facing land managers and farmers. A program was initiated in 2002 to investigate the potential role of incorporating clay-based materials into degraded soils as a means of enhancing productivity. This research report attempts to provide an ex-post assessment of the field level impact and economic viability of this approach, using the empirically derived estimates of the average income impacts that the application of bentonite or clay technology has generated among farm communities in Northeast Thailand. From an exclusive IWMI perspective, the impact evaluation suggests that the program has a net present value (NPV) of US$0.41 million with a benefit-cost ratio (BCR) of 2.44 for the sample, and a NPV of US$21 million with a BCR of 75 for the region.
Tipo:  Report
Idioma:  Inglês
Identificador:  ISSN 1026-0862

ISBN 978-92-9090-707-7
Relação:  International Water Management Institute>IWMI Research Reports
IWMI Research Report
Formato:  30p.

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