Scientific Evaluation of Smallholder Land use Knowledge in Central Kenya
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Date
2008
Authors
Mugendi, D.N.
Mairura, F. S.
Mwanje, J. I.
Ramisch, J. J.
Mbugua, P. K.
Chianu, J. N.
Journal Title
Journal ISSN
Volume Title
Publisher
Wiley InterScience
Abstract
The following study was conducted to determine smallholders’ land use management practices and agricultural indicators of soil
quality within farmers’ fields in Chuka and Gachoka divisions in Kenya’s Central Highlands. Data on cropping practices and soil
indicators were collected from farmers through face-to-face interviews and field examinations. Farmers characterised their fields
into high and low fertility plots, after which soils were geo-referenced and sampled at surface depth (0–20 cm) for subsequent
physical and chemical analyses. Farmers’ indicators for distinguishing productive and non-productive fields included crop yield,
crop performance and weed species. Soils that were characterised as fertile, had significantly higher chemical characteristics
than the fields that were of poor quality. Fertile soils had significantly higher pH, total organic carbon, exchangeable cations and
available nitrogen. Factor analysis identified four main factors that explained 76 per cent of the total variance in soil quality. The
factors were connected with farmers’ soil assessment indicators and main soil processes that influenced soil quality in Central
Kenya. Soil fertility and crop management practices that were investigated indicated that farmers understood and consequently
utilised spatial heterogeneity and temporal variability in soil quality status within their farms to maintain and enhance
agricultural productivity. Copyright
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2007 John Wiley & Sons, Ltd
Description
DOI : 10.1002/ldr.815
Keywords
farmers, local indicators, local knowledge, scientists, soil quality, factor analysis;, Kenya
Citation
land degradation & development 30 March 2007