This video gives a glimpse of how it spreads in SRI fields. In the village Kottur farmers (of Andhra Pradesh state, India) observed substantial contribution of azolla to fertility in SRI field when it is incorporated into the soil. It only takes to spread small azolla mass into the field when it is puddled. It spreads fast into the entire land (depending on moisture) by the next season. This could potentially reduce fertiliser usage in the SRI paddy fields after few seasons. If any one has further details of nutritional addition please pass it on.
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