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0723 System of Rice Intensification. Group II Field Report. Tripura, India
 

0723 System of Rice Intensification. Group II Field Report. Tripura, India

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R. Rajendran, Tamil Nadu Agricultural University, Coimbatore

R. Rajendran, Tamil Nadu Agricultural University, Coimbatore

Audience: 2nd National SRI Symposium, Agartala, India

Subject Country: Tripura, India

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    0723 System of Rice Intensification. Group II Field Report. Tripura, India 0723 System of Rice Intensification. Group II Field Report. Tripura, India Presentation Transcript

    • Field Trip Report – Group II October 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
    • No. of delegates participating 50 Villages covered 3 Farmers participating 35 Farmers interviewed 5
    • 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
    • Visitors received an overwhelming reception
      • 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)
      • 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
    • 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
      • 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
    • 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
    • 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
    • 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
    • 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
    • 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
    • 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 20 th day Variety: PC 19 35-55 tillers/hill Ave. yield: 4.5 to 5.0 t/ha
    • 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
    • Field study ….
    • Serious discussions going on …..
    • Field view & view of rotary weeder in Bagabasa village
    • Field study …. Seeing the difference between SRI & conventional practice
    • T h a n k y o u