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David, S.[Les diagrammes d impact, outils d évaluation du changement dans le domaine de la recherche agricole]Les diagrammes d impact, outils d évaluation du changement dans le domaine de la recherche agricole
David, S.[Seed first : developing farmer seed enterprises in Uganda for the production and distribution of bean varieties]Seed first : developing farmer seed enterprises in Uganda for the production and distribution of bean varieties
David, S.Kasozi, S[Designing sustainable, commercial, farmer seed production systems in Africa: case studies from Uganda]Designing sustainable, commercial, farmer seed production systems in Africa: case studies from Uganda

As economies develop and societies change, emerging sets of challenges are placed on water resources and its governance. Population growth and economic development tend to drive the demand for more water, and push river basins into situations of scarcity. Agriculture, globally the largest user of...


David, S.Lautze, JonathanShah, TushaarBin, D.Giordano, MarkSanford, Luke[Governing to grow enough food without enough water?second best solutions show the way]Governing to grow enough food without enough water?second best solutions show the way

The growing pressure on fresh water resources demands that agriculture becomes more productive with its current water use. Increasing water productivity is an often cited solution, though the current levels of water productivity are not systematically mapped. A global map of water productivity he...


Zwart, Sander J.Bastiaanssen, Wim G.M.Fraiture, Charlotte deDavid, S.[A global benchmark map of water productivity for rainfed and irrigated wheat]A global benchmark map of water productivity for rainfed and irrigated wheat

Water productivity in agriculture needs to be improved significantly in the coming decades to secure food supply to a growing world population. To assess on a global scale where water productivity can be improved and what the causes are for not reaching its potential, the current levels must be u...


Zwart, Sander J.Bastiaanssen, Wim G.M.Fraiture, Charlotte deDavid, S.[WATPRO: a remote sensing based model for mapping water productivity of wheat]WATPRO: a remote sensing based model for mapping water productivity of wheat

In the present study, NDVI time-series 10-day composites derived from NOAA AVHRR data were used to estimate bimodal agriculture areas (where there are two seasons of cultivation per annum) using Fourier approach. The NDVI sequence was transformed into harmonic signals and the amplitude and phase ...


Canisius, F.Turral, HughDavid, S.[Fourier analysis of historical NOAA time series data to estimate bimodal agriculture]Fourier analysis of historical NOAA time series data to estimate bimodal agriculture

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