RESEARCHER-MANAGED TRIALS FARM SYSTES EXPERIMENTATION managed by the researchers) as distinct from FARMER-MANAGED TRIALS. RESOURCE FEASIBILITY This prev.~ils when a proposed action or project is feasible in terms of available resources. ROTATION Systematic growing of different kinds of crops in recurrent succession an the same PLOT. ROW INTERCROPPINO The growing of two or more crops simultaneously in the same PLOT in distinct rows. SEASONAL CHOPPING Cultivation of crops only in a particular season of the year. SEASONAL FALLOWING The use of intra-year FALLOW periods during certain seasons (e.g. in the dry or cold season). SECONDARY DATA Data collected for other purposes but which is relevant and can be used relative to a current activity. SEQUENTIAL CROPPING The growing of two crops in rapid sequence, planting one after the harvest of the former. Also known as DOUBLE CROPPING. PAGE 21