1057 promotion and spread of sri in tamil nadu, india
DESCRIPTION
Presented by: Dr.B.J.Pandian, Water Technology Centre, Tamil Nadu Agricultural University, CoimbatorePresented at IRC SRI DayTRANSCRIPT
![Page 1: 1057 Promotion and Spread of SRI in Tamil Nadu, INDIA](https://reader038.vdocuments.net/reader038/viewer/2022103111/54bb7e1c4a7959306a8b459c/html5/thumbnails/1.jpg)
Dr.B.J.PandianDr.B.J.PandianProfessor (Agronomy)Professor (Agronomy)
Water Technology CentreWater Technology Centre
Tamil Nadu Agricultural UniversityTamil Nadu Agricultural University
CoimbatoreCoimbatore
Promotion and Spread of SRI in Tamil Nadu, INDIA
![Page 2: 1057 Promotion and Spread of SRI in Tamil Nadu, INDIA](https://reader038.vdocuments.net/reader038/viewer/2022103111/54bb7e1c4a7959306a8b459c/html5/thumbnails/2.jpg)
RIVER BASINS OF TAMIL NADU
Total river basinsTotal river basins 1717
Sub basinsSub basins 127127
TanksTanks 3980039800
WellsWells 3.70 millions3.70 millions
Net irrigated areaNet irrigated area 27.6 lakh ha27.6 lakh ha
Irrigation intensityIrrigation intensity 117%117%
![Page 3: 1057 Promotion and Spread of SRI in Tamil Nadu, INDIA](https://reader038.vdocuments.net/reader038/viewer/2022103111/54bb7e1c4a7959306a8b459c/html5/thumbnails/3.jpg)
TN-IAMWARM
Project 2007 – 2013
Total Outlay
Rs. 2,400 crores
TNAU share
Rs. 90 crores (3.75%)
Implementation
63 sub-basins
3 phases
![Page 4: 1057 Promotion and Spread of SRI in Tamil Nadu, INDIA](https://reader038.vdocuments.net/reader038/viewer/2022103111/54bb7e1c4a7959306a8b459c/html5/thumbnails/4.jpg)
Rice scenario in Tamil Nadu
Total areaTotal area 1.98 million ha1.98 million ha
Total production Total production 7.40 million tons7.40 million tons
ProductivityProductivity 3.75 t ha3.75 t ha-1-1
Water consumptionWater consumption 0.013 Mm0.013 Mm3 3 haha-1-1
Total water use per year in riceTotal water use per year in rice 25,400 Mm25,400 Mm33
Rice consumes 53 % of the state’s total water resources
Source : 2007-08 (Estimate) by Govt. of Tamil Nadu
![Page 5: 1057 Promotion and Spread of SRI in Tamil Nadu, INDIA](https://reader038.vdocuments.net/reader038/viewer/2022103111/54bb7e1c4a7959306a8b459c/html5/thumbnails/5.jpg)
System of Rice Intensification (SRI)System of Rice Intensification (SRI)
![Page 6: 1057 Promotion and Spread of SRI in Tamil Nadu, INDIA](https://reader038.vdocuments.net/reader038/viewer/2022103111/54bb7e1c4a7959306a8b459c/html5/thumbnails/6.jpg)
1. Improvements in productivity
Benefits
![Page 7: 1057 Promotion and Spread of SRI in Tamil Nadu, INDIA](https://reader038.vdocuments.net/reader038/viewer/2022103111/54bb7e1c4a7959306a8b459c/html5/thumbnails/7.jpg)
2. Reductions in cost of cultivation
Conventional
SRI
Saving
Rs. 2,369/ha
Reduction in seed cost, nursery area and duration; nursery costs reduced by 68%Reduction in seed cost, nursery area and duration; nursery costs reduced by 68%
Seedling-pulling cost reduced from Rs. 800 to Rs. 150Seedling-pulling cost reduced from Rs. 800 to Rs. 150
Labour requirement for planting reduced from 60 to 35 Labour requirement for planting reduced from 60 to 35
Labour requirement for weeding reduced by 50 %Labour requirement for weeding reduced by 50 %
No need for herbicide No need for herbicide
Saving in electricity for pumping and labour for irrigationSaving in electricity for pumping and labour for irrigation
![Page 8: 1057 Promotion and Spread of SRI in Tamil Nadu, INDIA](https://reader038.vdocuments.net/reader038/viewer/2022103111/54bb7e1c4a7959306a8b459c/html5/thumbnails/8.jpg)
Conventional methods(1,100 mm)
SRI methods (700 mm)
3.Water saving – 400 mm
![Page 9: 1057 Promotion and Spread of SRI in Tamil Nadu, INDIA](https://reader038.vdocuments.net/reader038/viewer/2022103111/54bb7e1c4a7959306a8b459c/html5/thumbnails/9.jpg)
Water saving irrigation
Root zone is not kept continuously saturated
36% saving in irrigation water
![Page 10: 1057 Promotion and Spread of SRI in Tamil Nadu, INDIA](https://reader038.vdocuments.net/reader038/viewer/2022103111/54bb7e1c4a7959306a8b459c/html5/thumbnails/10.jpg)
SRI
Conventional
4.4. Better functional root systemBetter functional root system
5.5. Non-lodging even during aberrant weatherNon-lodging even during aberrant weather
![Page 11: 1057 Promotion and Spread of SRI in Tamil Nadu, INDIA](https://reader038.vdocuments.net/reader038/viewer/2022103111/54bb7e1c4a7959306a8b459c/html5/thumbnails/11.jpg)
Th. Murugesan – s small farmer of Chinnar dub-basin who realized higher productivity of 12.5 t/ha has become
a spokesperson for SRI in the area Raised green manure dhaincha as pre-season crop.
Family labourers alone involved in the adoption of technology.
6. Scope for organic manures
![Page 12: 1057 Promotion and Spread of SRI in Tamil Nadu, INDIA](https://reader038.vdocuments.net/reader038/viewer/2022103111/54bb7e1c4a7959306a8b459c/html5/thumbnails/12.jpg)
Performance of Performance of SRI (2007-2010)SRI (2007-2010)
Year
Yield (kg ha-1)%
increase over
conven-tional
Area total (ha)
No. of benefi-ciariesSRI
Conventional
2007-08 5,709 4,465 28.3 1,311 5,446
2008-09 6,710 5,035 33.3 2,581 2,634
2009-10 7,058 5,139 37.3 4,000 5,245
![Page 13: 1057 Promotion and Spread of SRI in Tamil Nadu, INDIA](https://reader038.vdocuments.net/reader038/viewer/2022103111/54bb7e1c4a7959306a8b459c/html5/thumbnails/13.jpg)
Planting of younger seedlings
Growth rate in SRI plants is accelerated as these are able to complete more phyllochrons before entering into their reproductive phase (Nemoto et al., 1995; Berkelaar, 2001).
This leads to both higher number of tillers per hill and enhanced production of effective tillers.
Younger seedlings have improved root characteristics, like root length density and root weight, after transplanting compared to older seedlings (Mishra and Salokhe, 2008)
![Page 14: 1057 Promotion and Spread of SRI in Tamil Nadu, INDIA](https://reader038.vdocuments.net/reader038/viewer/2022103111/54bb7e1c4a7959306a8b459c/html5/thumbnails/14.jpg)
Wider spacing
Open plant structure of SRI rice covers more ground area and is able to intercept more light.
This results in higher LAI and greater leaf size that leads to vigorous root system which has more adequate room to grow.
At closer spacing between rice plants, the number of panicles per unit area increases, but the shorter panicles contain lesser grains, thereby resulting in the lower yield with conventional rice cultivation methods (Thakur et al., 2010).
![Page 15: 1057 Promotion and Spread of SRI in Tamil Nadu, INDIA](https://reader038.vdocuments.net/reader038/viewer/2022103111/54bb7e1c4a7959306a8b459c/html5/thumbnails/15.jpg)
Alternate wetting and drying Rice grown under conventional system encounters hypoxic soil conditions and its roots degenerate under flooding; plants lose three-fourth of their roots by the time they reach the flowering stage (Kar et al., 1974).
Alternate wetting and drying combined with mechanical weeding results in more air in the soil and in greater root growth which gives better access to nutrients as compared to conventional planting.
SRI plants have deeper and stronger root systems, supported by intermittent irrigation practiced on soils without physical barriers to root growth (Stoop et al., 2002).
![Page 16: 1057 Promotion and Spread of SRI in Tamil Nadu, INDIA](https://reader038.vdocuments.net/reader038/viewer/2022103111/54bb7e1c4a7959306a8b459c/html5/thumbnails/16.jpg)
CHALLENGESCHALLENGES
• Farmers’ traditional mindsetFarmers’ traditional mindset
• Lack of awareness of SRI opportunitiesLack of awareness of SRI opportunities
• Skill upgrading of labourersSkill upgrading of labourers
• Lack of regulated irrigation distributionLack of regulated irrigation distribution
• Timely availability of implements: markers & Timely availability of implements: markers & weedersweeders
![Page 17: 1057 Promotion and Spread of SRI in Tamil Nadu, INDIA](https://reader038.vdocuments.net/reader038/viewer/2022103111/54bb7e1c4a7959306a8b459c/html5/thumbnails/17.jpg)
Exposure visits to changeTraditional mindset
![Page 18: 1057 Promotion and Spread of SRI in Tamil Nadu, INDIA](https://reader038.vdocuments.net/reader038/viewer/2022103111/54bb7e1c4a7959306a8b459c/html5/thumbnails/18.jpg)
Workshop on SRI and NADP programmes at Coimbatore (25.07.08)
Workshop on SRI and NADP programmes at Madurai (11.08.08)
Awareness creationAwareness creation
![Page 19: 1057 Promotion and Spread of SRI in Tamil Nadu, INDIA](https://reader038.vdocuments.net/reader038/viewer/2022103111/54bb7e1c4a7959306a8b459c/html5/thumbnails/19.jpg)
Visit of the Secretary to the Hon. CM, Tamil Nadu, to a SRI field at Azhiyur,
Varaganadhi
VIPs’ participation in Field Days
Hon. Agricultural Minister’s visit to a SRI field at Pallathathanoor,
Upper Vellar
Legislative members of Estimate Committee visiting a SRI field at
Vikravandi
![Page 20: 1057 Promotion and Spread of SRI in Tamil Nadu, INDIA](https://reader038.vdocuments.net/reader038/viewer/2022103111/54bb7e1c4a7959306a8b459c/html5/thumbnails/20.jpg)
Newspaper publications on SRI techniques
Popularization of Technologies
Tamil Book on self-learning modeCD on SRI
![Page 21: 1057 Promotion and Spread of SRI in Tamil Nadu, INDIA](https://reader038.vdocuments.net/reader038/viewer/2022103111/54bb7e1c4a7959306a8b459c/html5/thumbnails/21.jpg)
SRI beneficiaries addressing the SRI Workshop organized at Thanjavore
SRI beneficiaries as resource persons
![Page 22: 1057 Promotion and Spread of SRI in Tamil Nadu, INDIA](https://reader038.vdocuments.net/reader038/viewer/2022103111/54bb7e1c4a7959306a8b459c/html5/thumbnails/22.jpg)
Capacity Building
![Page 23: 1057 Promotion and Spread of SRI in Tamil Nadu, INDIA](https://reader038.vdocuments.net/reader038/viewer/2022103111/54bb7e1c4a7959306a8b459c/html5/thumbnails/23.jpg)
RuralRural Artisan Artisan TrainingTraining
![Page 24: 1057 Promotion and Spread of SRI in Tamil Nadu, INDIA](https://reader038.vdocuments.net/reader038/viewer/2022103111/54bb7e1c4a7959306a8b459c/html5/thumbnails/24.jpg)
Motivating labourers for square planting Motivating labourers for square planting
![Page 25: 1057 Promotion and Spread of SRI in Tamil Nadu, INDIA](https://reader038.vdocuments.net/reader038/viewer/2022103111/54bb7e1c4a7959306a8b459c/html5/thumbnails/25.jpg)
INNOVATIONS
![Page 26: 1057 Promotion and Spread of SRI in Tamil Nadu, INDIA](https://reader038.vdocuments.net/reader038/viewer/2022103111/54bb7e1c4a7959306a8b459c/html5/thumbnails/26.jpg)
Nursery technique: Nursery technique: Community NurseriesCommunity Nurseries
![Page 27: 1057 Promotion and Spread of SRI in Tamil Nadu, INDIA](https://reader038.vdocuments.net/reader038/viewer/2022103111/54bb7e1c4a7959306a8b459c/html5/thumbnails/27.jpg)
SRI monitoring team visit for evaluation and up-scaling
![Page 28: 1057 Promotion and Spread of SRI in Tamil Nadu, INDIA](https://reader038.vdocuments.net/reader038/viewer/2022103111/54bb7e1c4a7959306a8b459c/html5/thumbnails/28.jpg)
SRI FARMERS’ ASSOCIATION
SWAFIA: “SAVE WATER FARMERS’ INTEREST ASSOCIATION”
![Page 29: 1057 Promotion and Spread of SRI in Tamil Nadu, INDIA](https://reader038.vdocuments.net/reader038/viewer/2022103111/54bb7e1c4a7959306a8b459c/html5/thumbnails/29.jpg)
SRI : SHG TRAINING OF WOMEN LABOURERS
![Page 30: 1057 Promotion and Spread of SRI in Tamil Nadu, INDIA](https://reader038.vdocuments.net/reader038/viewer/2022103111/54bb7e1c4a7959306a8b459c/html5/thumbnails/30.jpg)
Oru Nellu Oru Nathu (Single seed, single seedling)
![Page 31: 1057 Promotion and Spread of SRI in Tamil Nadu, INDIA](https://reader038.vdocuments.net/reader038/viewer/2022103111/54bb7e1c4a7959306a8b459c/html5/thumbnails/31.jpg)
SRI crop monitoring through cellphone in South Vellar subbasin - way2sms.com
![Page 32: 1057 Promotion and Spread of SRI in Tamil Nadu, INDIA](https://reader038.vdocuments.net/reader038/viewer/2022103111/54bb7e1c4a7959306a8b459c/html5/thumbnails/32.jpg)