SSystems approaches for agricultural developmentSystems approaches for agricultural developmentde F. W. T. Penning de VriesMateriasAgricultural systemsCongressesResearchEdiciones (1)Systems approaches for agricultural development (1992)Elsevier Applied Science · inglésMás obras de F. W. T. Penning de VriesTThe productivity of Sahelian rangelandsThe productivity of Sahelian rangelands
SSimulation of ecophysiological processes of growth in severaSimulation of ecophysiological processes of growth in several annual crops
