Rainfed rice - IRRI books - International Rice Research Institute

Indigenous Weed
Management Practices in
Rainfed Rice Farming
What are indigenous weed management practices?
I
ndigenous weed management practices are methods of weed
management that have originated locally and are being used extensively
by farmers based on their experience. Some of the methods are common
to all ecosystems of rice while others are situation-specific.
Summer ploughing
Summer ploughing is the most
common practice applicable to
almost all ecosystems of rice. It
disturbs the natural establishment of
weeds and helps check their
proliferation. Summer ploughing
leads to:
weed seeds from the sub-surface
of the soil being brought to the
surface;
the destruction of the already
germinated weed seedlings on the
surface and the exposure of the
moistened seed to the sun. (This
process helps in the destruction of
most weed species.)
Yield under unweeded conditions
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