Sustainable SRI and Rice Production: Learnings from an Irrigated Agriculture Management Project in Tamil Nadu

The temporal and spatial spread of irrigation availability from both surface and subsurface flows contributed to substantial increases in rice production from the 1990s, but the increase was mainly yield-led rather than due to an expansion in the area. [...]the pace of adoption or spread of SRI in T...

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Bibliographic Details
Published in:Economic and political weekly 2020-01
Main Authors: Nayar, Vibhu, Ravichandran, V K, Barah, B C, Uphoff, Norman
Format: Article
Language:English
Subjects:
Agricultural industry
Agricultural production
Agricultural research
Agriculture
College faculty
Cyclones
Food
Grain industry
Groundwater
Innovations
Irrigation
Plant biochemistry
Precipitation variability
Production capacity
Production data
Productivity
Rain
Research institutes
Rice
Soil fertility
Storm damage
Water
Wind
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Summary:The temporal and spatial spread of irrigation availability from both surface and subsurface flows contributed to substantial increases in rice production from the 1990s, but the increase was mainly yield-led rather than due to an expansion in the area. [...]the pace of adoption or spread of SRI in Tamil Nadu was slow until 2007 when, observing the slow pace and realising its immense potential, SRI was considered as one of the water-saving technologies in a large project planned by the project authorities in the World Bank-assisted Irrigated Agriculture Modernisation and Water-Bodies Restoration and Management (IAMWARM) project. The crop damage was over 50% on 1,85,000 ha, and it affected the livelihood of 2,50,000 small and marginal farmers. [...]the areas under irrigation were severely affected by the prolonged dry spell, the deficit rainfall during the south-west monsoon, and the uneven temporal spread during the north-east monsoon. [...]the availability of surface and subsurface sources of irrigation water declined, and resulted in an increase in the fallow land, while the productivity of SRI was sustained (Table 2).
ISSN:0012-9976