Data/hora: 03/06/2024 08:17:52

Provedor de dados: | 31
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; Rice; Sorghum; Models; Statistical methods; Cost benefit analysis; Economic analysis; Economic aspects; Thailand; Agribusiness; 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

http://purl.umn.edu/53064

Relação:

International Water Management Institute&gt;IWMI Research Reports

IWMI Research Report

130

Formato: | 30p.