s:476:"%T Improving productivity of Indonesian in rubber based agroforestry systems : introduction and  financial analysis of RAS systems 
%A Penot, E. 
%X This document aims to present through a simple calculation over the complete lifetime of these rubber based systems the productivity and return to labour of various rubber based cropping patterns. Some of the components of these calculations are assumptions as these systems in particular RAS are still in experimentation. 
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