Some states and developed countries are now considering restoring high priority to agricultural development (2). Policy-makers must get the strategy right. Depletion of , along with the concomitant problems of weeds, pests, and diseases, is a major biophysical cause of low per capita food production ...
For these reasons, iSDA and partners developed “iSDAsoil”, a and agronomy information service aimed at delivering farm level data for the entire continent, at a high resolution of ...
Khan ‘The Role of the National Conservation Association in South , 1953-1959’, Environmental History , 2,4, 1997, 441, 454; P . Delius and S Schirmer, ‘ Conservation ...