Summary
This review synthesises the agronomic and socioeconomic challenges of mixed crop–livestock farming in semiarid West Africa, where population growth and urbanisation are driving intensification of traditionally extensive systems. The paper emphasises nutrient cycling as a central constraint: whilst livestock manure is essential for soil fertility, most farmers maintain insufficient livestock numbers to sustain productivity, leading to net nutrient depletion and declining cropland fertility. The authors conclude by outlining strategies to enhance the productive capacity of these integrated systems under resource-limited conditions.
Regional applicability
This study focuses on West African semiarid dryland conditions and systems; direct applicability to United Kingdom farming is limited given the UK's temperate climate, higher input availability, and different farming structures. However, the paper's insights on nutrient cycling in mixed systems and the role of manure in soil fertility may be transferable to organic or low-input farming contexts in the UK, and the analytical framework for crop–livestock linkages is relevant to UK mixed farming.
Key measures
Nutrient inputs and outputs from cropland, manure availability, livestock feed sources (natural rangeland and crop residues), income linkages, and animal power provision in mixed systems.
Outcomes reported
The paper examines principal linkages between crops and livestock in mixed farming systems, with particular focus on nutrient cycling, manure as a soil fertility amendment, and nutrient depletion dynamics. It discusses strategies to improve productive capacity under conditions of population pressure and intensification.
Topic tags
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