The system of rice intensification (SRI)

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The system of rice intensification (SRI)
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What is SRI ?
A methodology rather than as a technology A
strategy not just to increase rice production,
but also to promoter human resource development.
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What is SRI ?
Fr. Henri de Laulante Since 1961 worked with
rice in Madagascar. 1983 How the best
possible growing environment can be provided
to rice plants?
1990 Established Tefy Saina means to
develop the mind to promote SRI.
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1999 Nanjing Agricultural University in China
Agency for agricultural Research and
Development in Indonesia 2000 Spread to
more countries
2000 Yuan Long Peng China National
hybrid Rice Research and
Development Center
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Principles
1. Rice is not an aquatic plant 2. Rice seedlings
lose much of their growth potential if they
are transplanted more than about 15 days
after emerge in their nursery. 3. During
transplanting, trauma to seedlings and
especially to their roots should be minimized. 4.
Wide spacing of plants will lead to greater root
growth and accompanying tillering. 5. Soil
aeration and organic matter create beneficial
conditions for plant root growth.
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Practices
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Experiments with SRI in China Anhui Province
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Experiments with SRI in China Sichuan Province
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Preliminary evaluation of SRI
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Preliminary evaluation of SRI
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Improvement of SRI
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Improvement of SRI
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More fertile tiller Bigger panicle
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Nature 2004
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UFO unconfirmed field observations