Methodology for the Participation of Small Farmers in the Design of On-Farm Trials
This article reports the results of a collaborative research effort carried out in 1982-84 by the International Fertilizer Development Centre (IFDC) and the International Centre for Tropical Agriculture (CIAT), in Colombia, to determine the agronomic potential of local phosphate materials identified in experiment sation research, in the soils, climate and management conditions found on small farms in Colombia.