Comparing productivity of millet-based cropping systems in unstable environments of the Sahel: Possibilities and challenge

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Elsevier Science Ltd.

Falling per capita food production, increasing population pressure on arable land and soil nutrient mining that occurs under traditional cropping systems in West Africa have generated a strong demand for more productive yet sustainable cropping systems. Total factor productivity methodology was used to analyze millet-based cropping systems developed for the Sahel. Interspatial total factor productivity comparisons indicate that the new cropping systems were more profitable than the traditional cropping system. However, the determination of the sustainability of the tested systems was constrained by lack of appropriate time series data to cope with environmental instability in the Sahel and changes in resource stocks. In designing new cropping system technologies for areas prone to degradation, a multi-disciplinary research strategy is needed to identify and measure resource stock changes that affect productivity. It is also imperative to use crops and systems models, particularly in unstable climatic environments, to generate adequate time series data for the measurement of sustainability. Finally, cropping systems evaluated should include both packages and components. This will permit the formulation of recommendations that fit resources or preferences of different farmers.

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Food security, Soil nutrients, Farming systems, Sustainability, Millet, Cropping systems, Sahel, Productivity, Models, Unstable environments, Increasing population, Ecosystem Farm/Enterprise Scale
Agricultural Systems 51(1): 85-95