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Improved crop productivity for Africa's drylands (Paperback)
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Improved crop productivity for Africa's drylands (Paperback)
Series: World Bank studies
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More than 200 million people living in dryland regions of
Sub-Saharan Africa make their living from agriculture. Most are
exposed to weather shocks, especially drought, that can decimate
their incomes, destroy their assets, and plunge them into a poverty
trap from which it is difficult to emerge. Their lack of resilience
in the face of these shocks can be attributed in large part to the
poor performance of agriculture on which their livelihood depends.
Opportunities exist to improve the fortunes of farming households
in the drylands. Improved farming technologies that can increase
and stabilise the production of millet, sorghum, maize, and other
leading staples are available. Irrigation is technically and
economically feasible in some areas and offers additional
opportunities to increase and stabilise crop production, especially
small-scale irrigation, which tends to be more affordable and
easier to manage. Yet many of these opportunities have not been
exploited on a large scale, for reasons that include lack of farmer
knowledge, nonavailability of inputs, unfavorable price incentives,
high levels of production risk, and high cost. Future production
growth in drylands agriculture is expected to come mainly from
raising yields and increasing the number of crop rotations on land
that is already being cultivated (intensification), rather than
from bringing new land into cultivation (extensification).
Controlling for rainfall, average yields in rainfed cropping
systems in Sub-Saharan Africa are still much lower than yields in
rainfed cropping systems in other regions, suggesting that there is
considerable scope to intensify production in these systems.
Furthermore, unlike in other regions, production of low-value
cereals under irrigation is generally not economic in Sub-Saharan
Africa unless the cereals can be grown in rotation with one or more
high-value cash crops. The long-run strategy for drylands
agriculture, therefore, must be to promote production of staples in
rainfed systems and production of high-value cereals (for example,
rice), horticultural cops, and industrial crops in irrigated
systems. Based on a detailed review of currently available
technologies, Improved Crop Productivity for Africa's Drylands
argues that improving the productivity and stability of agriculture
in the drylands has the potential to make a significant
contribution to reducing vulnerability and increasing resilience.
At the same time, it is important to keep in mind that in an
environment characterised by limited agro-climatic potential and
subject to repeated shocks, farming on small land holdings may not
generate sufficient income to bring people out of poverty.
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