Strategy for improving bush bean production on a phosphorus fixing Andosol with aquic moisture regime
Abstract
142 words
In Uganda, bean is a food security and income sourcing crop,
particularly for the rural poor. The highlands of southwestern
Uganda are major producers and consumers of the crop. The
arable soils in the highlands bordering Rwanda and DR Congo
are mostly volcanic ash based, typically known to fix phosphorus
but the extent to which this occurs (sorption-desorption
phenomena) remains unknown. Moreover, the soils are
increasingly affected by waterlogging to levels that impair bean
growth and yield. Therefore, the study objectives were to
identify farmer coping mechanisms for bush bean production
under waterlogging conditions, and determine the optimum
application rates of phosphorus for bush bean production on an
acid Andosol. Preliminary results indicate that due to water
logging effects of P on bean growth was not apparent. Because
of water logging, growing bush beans is being abandoned in
favour of climbing beans.
Subjects
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