Phosphorus (P) is a critical, geographically concentrated, nonrenewable resource necessary to support global food production. In excess (e.g., due to runoff or wastewater discharges), P is also a primary cause of eutrophication. To reconcile the simultaneous shortage and overabundance of P, lost P flows must be recovered and reused, alongside improvements in P-use efficiency. While this motivation is increasingly being recognized, little P recovery is practiced today, as recovered P generally cannot compete with the relatively low cost of mined P.

Climate-induced livelihood transitions in the agricultural systems of Africa are increasingly likely. There is limited evidence on what such transitions might look like. We carried out fieldwork in 12 sites in Kenya, Tanzania and Uganda to understand changes in farming systems in the recent past, and to test the hypothesis that sedentary farmers in zones that may become warmer and drier in the future may be forced to increase their reliance on livestock vis-à-vis cropping in the future. We estimated the contribution of crop and livestock activities to incomes, food security and poverty.

Forests and other tree-based systems such as agroforestry contribute to food and nutritional security in myriad ways. Directly, trees provide a variety of healthy foods including fruits, leafy vegetables, nuts, seeds and edible oils that can diversify diets and address seasonal food and nutritional gaps. Forests are also sources of a wider range of edible plants and fungi, as well as bushmeat, fish and insects.

This report presents findings from a village baseline study conducted in Rohal Suong village in Cambodia. Findings have been gathered from focus group discussions and participatory resource mapping with community members in Rohal Suong. The site analysis is part of the CGIAR Research Program on Climate Change, Agriculture, and Food Security (CCAFS) Baseline Survey work and provides information on community resources, the organizational landscape, and information networks at the village level.

The village baseline of Denbela Saden village in the CCAFS benchmark site of Yabello in Ethiopia took place from 10th to 12th August 2011. Focus group discussions were conducted separately for men and women.

Water management strategies and allocation policies that support agricultural intensification across agro-ecological zones and hydrologic basins are required for building resilient agrarian communities in sub-Saharan Africa.We provide an overview of the research and investments needed to enhance agriculture in the region, with a focus on technology and institutions, while describing opportunities for improving rainfed crop production.We discuss a range of water management practices in three river basins that were part of the Challenge Program onWater and Food research on Basin Development C

The objectives of the workshop were to (i) share and exchange experiences and lessons on available methods and tools to identify and analyse trade-offs in agricultural systems (at different levels: from household to landscape, regional and global level), (ii) to discuss and explore how we can apply the lessons learned within and between the respective CRPs, (iii) to explore potential for synergies and collaboration between scientists and programs on trade-off analysis in agricultural systems, (iv) to discuss how results from trade-off analysis research can be translated to end-users to achi