field trip report – group ii october 5, 2007 chairman: dr. l.g. giri rao rapporteur: dr. r....
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Field Trip Report – Group IIOctober 5, 2007
Chairman: Dr. L.G. Giri Rao
Rapporteur: Dr. R. Rajendran
Liaison Officer: Mr. Ashish Saha
Co-ordinator: Mr. Chakraborthy
Officer – in- charge: Mr. P.K. Datta
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No. of delegates participating 50
Villages covered 3
Farmers participating 35
Farmers interviewed 5
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S.No.
Villages Location Farmer interviewed
1 Bagabasa GP Melaghar RD Block, West Tripura
Mr. Vallab Debnath
2 Sonapur Bosh Nagar
RD Block,
West Tripura
Mr. Chowdhary
3 Indiranagar Melaghar RD Block, West Tripura
Mr. Amirthalal Das
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Visitors received an overwhelming
reception
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Farmer experiences: Mr. Vallab Debnath
In local govt area, 40 ha planted with SRI
• Practices under SRI:
Seed rate – 2 kg/ac (conv. 20-25 kg/ac)
Compost - 3 t/ac, NPK – 40 kg/ha (conv. applic. 70 kg/ac)
8-10 day, single seedlings, gap-filling
Water management – AWD
Yield – 30-35 mond/kani (3 t/ac)
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Field observations :
Bagabasa Gram Panchayat area
• Swarna Mashuri and Pooja varieties
• Square planting, 22 – 25 cm
• Tillers per plant 25- 35 (ave. 30)
• Water stagnation by rain but draining
• First hand weeding by rotary weeder
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2. Mr. Chowdhary (Sonapur)
Aman rice – planted with SRI methods
Seed rate – 2 kg/ac (conv. 25 kg/ac)
Seedling – single (conv . 5-6/hill), 10 d old seedlings (conv. 30 days)
NPK fertilizer – 65 kg/ac (conv. 175 kg/ac)
Three rotary weedings – 12, 24 and 36 DAT (conv. 2 hand weedings); AWD irrigation
No lodging; reach maturity 5-7 days earlier, but pest attack is more in SRI
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Paddy yield expected from present aman crop:
• 40 mond/kani - 3.8 t/ac (9.5 t/ha)
Constraints:
• Labour problem especially for weeding
• Time-bound operations
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3. Mr. Amirthalal Das, Indhiranagar
10 d old seedlings, single seedlings, square planting, 25 x 25 cm spacing
Rice yield
40 panicles/hill, 38 mond/kani – 3.8 t/ac (conv. yield 1.8 t/ac -- 9.5 vs. 4.5 t/ha)
Yield >doubled; cost reduced; 15 days earlier maturity; low pest pressure; good grain filling; low chaff (few unfilled grains); maximum tillering; only labour is a problem
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After the field visit, 6 presentations were made by delegates
S.No
Name of delegate Topic
1 Dr. V. Ravindra Babu, DRR, Hyderabad
Grain quality assessment in SRI• BPT 5204, DRRH-2, Swarna• Eco-SRI, SRI and Traditional• Only varietal difference in grain quality• No influence by management effect except few parameter, viz., amylose content• Results need to be confirmed
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S.No Name of delegate
Topic
2 Dr. K. Surekha, DRR, Hyderabad
Nutrient uptake and soil mining study in SRI• Low NUE and yield in Eco-SRI• SRI & conventional NPK uptake on par• SRI & conventional yields -- no difference• No soil depletion after 2 seasons of SRI• No clear varietal difference exists on NUE• Soil-available K more in Eco- SRI • Results need to be confirmed
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S.No Name of delegate
Topic
3 Dr. K. Karthikeyan, Kerala
Pest incidence in SRI• Jyothi & KRH–2 evaluated• Stem borer moderate level • Rice blue beetle - more under SRI • Leaf folder and whorl maggot reduced in SRI• Increased activity of natural enemies, viz., spiders and larval parasites• Only one season of data, results need to be confirmed
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S.No Name of delegate
Topic
4 Dr. G. Ravi, TNAU, Tamil Nadu
SRI and IPM • Stem borer, BPH, whorl maggot, gall midge reduced under SRI • Only leaf folder is more under SRI• Increased activity of predatory spiders• IPM fits very well with SRI
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S.No Name of delegate
Topic
5 Sardar Iqbal Singh, Farmer, J & K
Used marker, 25x25 cm spacing, 15 d seedlings, pulling out of nursery very easy, conventional method laborious, AWD irrigation, full NPK applied, cono weeder 20th day
Variety: PC 19
35-55 tillers/hill
Ave. yield: 4.5 to 5.0 t/ha
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S.No Name of delegate
Topic
6 Mr. Gopal Swaminathan
Agricultural graduate cum farmer
Shared his experiences on:
Double transplanting technique with SRI to mitigate extremely hot climate in Cauvery Delta
Innovative method of planting rice on ridges (direct seeding) in ridge-furrow system
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Field study ….
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Serious discussions going on …..
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Field view & view of rotary weeder in Bagabasa village
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Field study ….
Seeing the difference
between SRI & conventional
practice
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