0946 emerging experiences with sri in rainfed tank irrigation systems
DESCRIPTION
Presented by: Bhagyalaxmi S Presented at: SRI PRADAN WorkshopTRANSCRIPT
Emerging Experiences with SRI in Rainfed
Tank Irrigation Systems
Bhagyalaxmi S WASSAN
Tank Irrigation : Situation• Traditionally, paddy in Andhra Pradesh is grown
under tank systems • Traditionally-defined command areas under
tanks are reducing1. Siltation & insufficient water in flows2. Breaches in bunds & maintenance problems3. Salinity
• Paddy area is shifting to bore wells (from tanks)• Stagnant / declining paddy yields• In recent times, tanks are filling up with high-
intensity rains due to changes in rainfall pattern
• SRI is taking root as a major option for raising and sustaining rice productivity with less need for water and purchased inputs.
• Farmers’ interest in SRI: Complete the crop in maximum possible area within the season
• Increase command area (within the larger command), i.e., increased area under tai bandi
• No water shortages at the end of the season• Lower input costs with yield increases
SRI - A Potential Solution
Experience. .
S. NO
Subject 2007 -Rabi
2008 - Kharif
2008- Rabi
2009-Rabi
Remarks
1 Number of tanks
1 2 3 11 Contiguous area in demos with incentives. Fast spread & less drop-outs
2 Number of farmers
15 92 48 189
3 Acres 7 113 29 525
4 Total area 7 142 525+207* (732)
*In addition to tanks, 207 acres area under bore wells shifted to SRI in 2009 Rabi
Key elements of SRI In Tank Irrigation Systems
1. Irrigation systems to be redesigned • Present design is for inundation• Re-design for wet & dry system of irrigation• Neerugatti (water distributor) needs to reorient
his irrigation schedule / knowledge
2. Block approach– Large area in one pocket – requirements
• Labor skill-building• Equipment - need timely availability• Handholding support
Key Elements……(Contd...) .3. Defining the command area for the season..
• Demarcation of the area to be taken under SRI, based on water availability (tai bandhi)
4. Custom hiring center• Ensure timely availability • Markers and weeders for SRI are used once and thrice in
a season respectively • Providing implements with subsidy to every farmer is not
economical
5. Establishing NPM shop & pest management• Timely availability of NPM inputs• Pest surveillance• Pest management
6. Labour subsidies
Incentives to Farmers from ATMA - 2008 Rabi
S.NO Activity Rs / Acre
1 Labor in weeding
(50% subsidy)
450
2 Neem powder 450
3 NPM shop 100
4 Total 1,000
Incentives are needed for up to three seasons on a tapering-off basis
S. NO Variety Soil
Tillers/m2 Panicles/m2
Grain yield (t/ha)
Grain yield (Q/ac)
SRI Conv. SRI Conv SRI Conv. SRI Conv.
1 MTU-1010 Sandy loam
256 303 238 280 6 5.21 24.5 21
2 Tellahamsa Saline 252 286 230 271 5.1 4.47 20.3 17.5
Crop Cutting & Field Days
Cost of cultivation & net profits
Subject SRI (Rs) Conv (Rs)
Land preparation 2,800 2,800
Seed 45 450
Labour (8) 400 750
DAP-75kg 750 750
Urea -50Kg 310 310
Weeding 600 1,000
Harvesting 420 420
Tractor hiring charges 450 450
Threshing 1,200 1,200
TOTAL COST 6,975 8,130
Irrigation - alternate (hrs) 3 7
Yield (bags) 39 32
Quintals 27.3 22.4
GROSS PROFIT 25,389 20,832
NET PROFIT 18,414 12,702
Departure. .
• Input subsidies• Demonstrate &
expect to diffuse• Trainings• One-season demos
• Area approach• Community-based
institutional arrangements• Skill building of labor• Subsidies for specific
constraints• Three years duration
Conventional approach
WASSAN’s
approach
Strategy and approach in NFSMand APDAI model
Parameter NFSM Based on WASSAN’s experience
Approach Scattered demonstrations (0.4 ha per 100 ha)
Block or contiguous area
Vehicles Hybrid rice and SRI SRI
Prime movers
Agr. ext. workers & scientific establishment
Farmer-led
Packaged Input-centric Confidence & skill building
Contd. .
Parameter NFSM Suggested…
Subsidies Going to companies and manufacturers
Direct cash subsidies to farmers or labor subsidies
Support Correcting for micro-nutrients deficiencies
Correcting the soil health
Equipment Centrally supplied – one type for all areas
De-centralized – locally suitable
Subsidies -equipment
Individual farmers Custom hiring center & individual farmers
Key Elements in Promotional Strategy
• Group / Block approach where an area is targeted for conversion of SRI over a period of three years rather than small area ‘demonstration’ models with few farmers.
• A field-level facilitator to anchor the process
Conti. .
• Custom hiring centre for implements
• An NPM-inputs shop to provide inputs for non-chemical inputs for managing insect pests and also to make inputs more easily available
Conti. .
• Training skill-building labor in nursery bed preparation, transplantation, and weeding
• Provision of incentives/ finances through a community-based organization, where the local stakeholder organizations and farmers have greater control in the identification of elements and delivery of subsidies
Thank You