The System of Rice Intensifi cation (SRI) 109constraints in managing a favourable interaction of the plant–soil environment
should not be underestimated. However, these constraints could be minimized if
SRI is used as a heuristic vehicle for linking rice research with participatory farmer
empowerment programmes. The SRI movement should be seen as a unique oppor-
tunity to integrate science with the society for sustainable development. Moreover,
SRI should be seen as a means of enhancing system productivity and not merely as
a vehicle for increasing yield.
Note
1 Phyllochron – a periodicity in plant growth expressed as the number of days to complete a unit
of growth which produces one or more phytomer (the unit of plant growth in gramineae species,
consisting of a leaf and subtending internode with a tiller bud at its base) (Stoop, 2005).
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