Agriculture Reference
In-Depth Information
6
YIELD AND YIELD
COMPONENTS
Sustainable increase in rice production in the near future
requires substantial improvement in productivity and
effi ciency. Rice yield and production have been considerably
increased during the last 30 years. In a number of countries,
yields of rice in favourable ecologies have reached the research
yield potential of the present generation of high yield ceiling,
where yield gaps are nearly closed. These increases not only
enhance rice productivity but also the effi ciency in production
systems, resulting in high economic output as well as high
income of farmers.
On the other hand, in many countries, the gap between yields
at research stations and in farmers fi elds are still substantially
large due to a combination of lack of initiatives, resources and
goodwill to narrow them. In these countries the integrated
crop management approaches including available location-
specifi c technologies coupled with active institutional support
from governments particularly for input and village credit
supplies as well as stronger research and extension linkages,
