-13-


 FIGURE 2
 Schematic Framework for Farming Systems Research


Farming System Research Stages


1. Description or
 diagnosis of present
 farming system





2. Design of improved
 systems


3. Testing of
 improved
 systems


4. Extension of improve
 farm system


Current Farming System
(Hypothesis Formulation)


External Institutions
 +


 Trials + Knowledge

 I
 Ii I
 I +
 It I



 aExperiment Staesting -- ------. Bodyof I








 1

d Modified no
ed Modified ...." --


Farming System


r I I