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J-SRI Research Group
YAMAJI Eiji
Dewi Sri
2
History of J-SRI
2007
January Unofficial establishment, decided the name
April 1 Official establishment
July 2 Lecture o...
3
Members of J-SRI
Advisors Norman Uphoff & Horie Takeshi
Chairman Yamaji Eiji
Chief Secretary Mizoguchi Masaru
Secretarie...
4
Subject Interests of J-SRI Members
Land Consolidation Yamaji Eiji
Soil Physics Mizoguchi Masaru
Project Management Sato ...
5
J-SRI Activities
Studies of SRI technology
Surveys of SRI in Indonesia, Lao,
Cambodia, Viet Nam, Philippines, India,
and...
6
SRI in Japan
Researchers
TUAT Field research 2007, 2008
UT Field research 2008, 2009,
Lysimeter 2010
Meiji University Ly...
7
Some Findings of J-SRI
Conditions of yield increase
Mechanisms of yield increase
Reducing GHG emissions
How many plants ...
Country SRI (non-SRI) Country SRI (non-SRI)
Bangladesh 6.3 (4.9) Madagascar 7.2 (2.6)
Cambodia 4.8 (2.7) Myanmar 5.4 (2.0)...
Stoop, Uphoff
et al.
(2002)
Researchers
positive
Rafaralahy
(2002)
NGO
Madagascar case
15 ~ 20 ton/ha
Ceesay et al.
(2006)...
Papers Country Field
SRI yield
(t/ha)
SRI
increase
Tsujimoto et al.3)
Madagascar F 8.9 5.1
Satyaranayana et al.4)
India F ...
One point is not enough
SRI SRI conventional
6.20 7.52 4.30
7.53 7.82 5.42
Sulawesi
4 5 6 7 8 9 t/ha
More detailed measurement
5m x 5m size, 20 plots
Lombok Test site
0.00
2.00
4.00
6.00
8.00
10.00
12.00
D1 D2 D4 S1 S2 S4 T1 T2 T4 N1 N2 N4 C1 C2 C4
t/ha
Intermittent Irrigation Continuous ...
17
Kashiwa Field
Conv. Organic
SRI Chemical
Conv. Chemical
SRI Organic Channel
Tsukuba eXpress
May 18 – October 3, 2009
Ch...
18
Snapshots: SRI vs Conventional Management
Sample Plants: SRI Sample Plants: Conventional Panicles: SRI vs
Conventional
...
19
Observations: Yield Parameters
Yield and yield attributing traits as affected by
treatments during 2009 rice season
Tre...
Measurement MethodMeasurement Method
1m
30cm
30cm
OutletOutlet
Pressure bagPressure bag
fanfan
ThermometerThermometer
hand...
22
Gas Flux Measured
メタンフラックス
- 10
- 5
0
5
10
15
20
25
30
35
2009/5/17 2009/7/6 2009/8/25 2009/10/14
(mgCH4m
-2
h
-1
)
S R...
23
日本の水田でのメタン放出量(C O2 放出量に換算)
0
1 0 0
2 0 0
3 0 0
4 0 0
5 0 0
S RI/ 有機 S RI/ 化学 慣行/ 有機 慣行/ 化学
(gCO2/m2
)
Methane Flux in K...
2424
Nitrous Oxide Flux in Kashiwa
日本の水田での亜酸化窒素放出量
(C O 2 放出量に換算)
- 4 0
- 3 0
- 2 0
- 1 0
0
1 0
2 0
3 0
S RI/ 有機 S RI/ 化学 ...
25
日本の水田でのメタン、亜酸化窒素放出量
(C O2 放出量に換算)
0
1 0 0
2 0 0
3 0 0
4 0 0
5 0 0
S RI/ 有機 S RI/ 化学 慣行/ 有機 慣行/ 化学
(gCO2/m2
)
25
NH4 and...
Website: J - SRI study group
http://www.iai.ga.a.u-tokyo.ac.jp/j-sri/
In Japan, too much rice presently produced
 So why ...
Terima kasih
1052 J SRI Research Center
1052 J SRI Research Center
1052 J SRI Research Center
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1052 J SRI Research Center

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Presented by: YAMAJI Eiji

Presented at: IRC Pre-Congress SRI Day. November 8, 2010

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1052 J SRI Research Center

  1. 1. J-SRI Research Group YAMAJI Eiji Dewi Sri
  2. 2. 2 History of J-SRI 2007 January Unofficial establishment, decided the name April 1 Official establishment July 2 Lecture of Prof. Uphoff at Tokyo University 2008 Dec. 1 Lecture of Mr. Iwasawa Meetings 6 times 2009 Field visit 1 time Meetings 5 times 2010 Meetings 4 times plus…..
  3. 3. 3 Members of J-SRI Advisors Norman Uphoff & Horie Takeshi Chairman Yamaji Eiji Chief Secretary Mizoguchi Masaru Secretaries Sato Shuichi Araki Tetsuya Abe Jun Yokoyama Shigeki Kimura Sonoko Dorothea Noborio Kosuke Tanaka Atsuko Inspector s Kobayashi Kazuhiko Iida Toshiaki Members 2+10+152+16 =180 (as of Oct. 31, 2010)
  4. 4. 4 Subject Interests of J-SRI Members Land Consolidation Yamaji Eiji Soil Physics Mizoguchi Masaru Project Management Sato Shuichi Fieldwork Araki Tetsuya Root Growth Abe Jun Nutrition Toriyama Kazunobu Social Network Yokoyama Shigeki GHG Emissions Kimura Sonoko Dorothea Noborio Kosuke Iida Toshiaki Modeling Kobayashi Kazuhiko Tanaka Atsuko
  5. 5. 5 J-SRI Activities Studies of SRI technology Surveys of SRI in Indonesia, Lao, Cambodia, Viet Nam, Philippines, India, and Kenya Experiments in Indonesia and Japan Measurements of CH4 and N2O
  6. 6. 6 SRI in Japan Researchers TUAT Field research 2007, 2008 UT Field research 2008, 2009, Lysimeter 2010 Meiji University Lysimeter 2010 JIRCAS Field research 2010 Farmers Mr. Ogawa, Aichi prefecture 2009 Mr. Iwasawa and team 2010 Non-farmers NPO Hotaruno, Chiba prefecture 2010
  7. 7. 7 Some Findings of J-SRI Conditions of yield increase Mechanisms of yield increase Reducing GHG emissions How many plants for transplant Farmers’ acceptance Spread of SRI … just started
  8. 8. Country SRI (non-SRI) Country SRI (non-SRI) Bangladesh 6.3 (4.9) Madagascar 7.2 (2.6) Cambodia 4.8 (2.7) Myanmar 5.4 (2.0) China 12.4 (10.9) Nepal 8.5 (4.2) Cuba 7.4 (4.3) Philippines 6.0 (3.0) India 8.0 (4.0) Sierra Leone 5.3 (2.5) Indonesia 7.4 (5.0) Sri Lanka 7.8 (3.6) Sato Shuichi(2006), units = tons of unhusked rice Reported Yield Increases
  9. 9. Stoop, Uphoff et al. (2002) Researchers positive Rafaralahy (2002) NGO Madagascar case 15 ~ 20 ton/ha Ceesay et al. (2006) Experiment in Gambia Sato (2006) Consultant Much experience in Indonesia Focus on roots Sheehy et al. (2004) Negative for irrigation method Dobermann (2003) Negative Using yield model and China experiment Horie et al. (2005) Possible Based on Japanese experience Positive/Negative Papers Originated by Shimizu Keisuke (2008)
  10. 10. Papers Country Field SRI yield (t/ha) SRI increase Tsujimoto et al.3) Madagascar F 8.9 5.1 Satyaranayana et al.4) India F 8.7 2.5 Thakur et al.5) India ES 6.3 1.8 Sinha and Talati6) India F 5.8 1.7 Mishra and Salokhe7) Thailand ES 6.3 1.1 Zhao et al.8) China ES 7.3 0.9 Chapagain and Yamaji9) Japan ES 7.4 0.0 Sheehy et al.10) China ES 7.2 0.0 Islam et al.11) Bangladesh ES 5.6 -0.2 Stoop1) China ES 3.7 -0.3 Latif et al.12) Bangladesh ES 5.4 -0.7 SRI yield from another view (Wakimoto)
  11. 11. One point is not enough SRI SRI conventional 6.20 7.52 4.30 7.53 7.82 5.42 Sulawesi
  12. 12. 4 5 6 7 8 9 t/ha More detailed measurement
  13. 13. 5m x 5m size, 20 plots Lombok Test site
  14. 14. 0.00 2.00 4.00 6.00 8.00 10.00 12.00 D1 D2 D4 S1 S2 S4 T1 T2 T4 N1 N2 N4 C1 C2 C4 t/ha Intermittent Irrigation Continuous Irrigation Direct Seeding 7 days 21 days 7 days 21 days Yield, 2007/2008 Rainy Season Plots 5m by 2.5m
  15. 15. 17 Kashiwa Field Conv. Organic SRI Chemical Conv. Chemical SRI Organic Channel Tsukuba eXpress May 18 – October 3, 2009 Chamber
  16. 16. 18 Snapshots: SRI vs Conventional Management Sample Plants: SRI Sample Plants: Conventional Panicles: SRI vs Conventional Intermittent vs Flooded Plot Intermittent Plot (60 DAT) Flooded Plot (60 DAT)
  17. 17. 19 Observations: Yield Parameters Yield and yield attributing traits as affected by treatments during 2009 rice season Treatment s Days to Flowerin g Days to Maturity Grain Yield (t/h) Straw Yield (t/h) Harvest Index (%) Plant Lodging % Organic SRI 76 (84) 120 (128) 6.6 4.8 57.8 0 Organic Non-SRI 72 (94) 114 (136) 6.5 6.4 50.2 0 Chemical SRI 76 (84) 120 (128) 5.9 5.0 54.2 20 Chemical Non-SRI 72 (94) 114 (136) 6.8 6.6 50.9 90 One/Hill ET: 11.8 6.2 5.9 51.3 60 Two/Hill ET: 17.2 7.1 7.0 50.2 60 Three/Hill ET: 16 5.9 6.5 47.3 90 Hexagonal ET: 22 7.1 5.2 57.8 20
  18. 18. Measurement MethodMeasurement Method 1m 30cm 30cm OutletOutlet Pressure bagPressure bag fanfan ThermometerThermometer handlehandle 50 mL Syringe50 mL Syringe Tedler bagTedler bag Closed Chamber method Methane : GC-FID (Shimazu   GC-14A) Nitrous Oxide : GC-ECD        ( Shimazu GC-2014 ) 1 ~ 3 times/ week
  19. 19. 22 Gas Flux Measured メタンフラックス - 10 - 5 0 5 10 15 20 25 30 35 2009/5/17 2009/7/6 2009/8/25 2009/10/14 (mgCH4m -2 h -1 ) S RI 有機肥料 S RI 化学肥料 慣行農法 有機 肥料 慣行農法 化学 肥料 Unit Gas FluxMethane Flux
  20. 20. 23 日本の水田でのメタン放出量(C O2 放出量に換算) 0 1 0 0 2 0 0 3 0 0 4 0 0 5 0 0 S RI/ 有機 S RI/ 化学 慣行/ 有機 慣行/ 化学 (gCO2/m2 ) Methane Flux in Kashiwa SRI Org. SRI Chem. Conv. Org. Conv. Chem Methane Flux CO2 equivalent
  21. 21. 2424 Nitrous Oxide Flux in Kashiwa 日本の水田での亜酸化窒素放出量 (C O 2 放出量に換算) - 4 0 - 3 0 - 2 0 - 1 0 0 1 0 2 0 3 0 S RI/ 有機 S RI/ 化学 慣行/ 有機 慣行/ 化学 (gCO2/m 2 ) 24 Nitrous Oxide Flux CO2 equivalent SRI Org. SRI Chem. Conv. Org. Conv. Chem
  22. 22. 25 日本の水田でのメタン、亜酸化窒素放出量 (C O2 放出量に換算) 0 1 0 0 2 0 0 3 0 0 4 0 0 5 0 0 S RI/ 有機 S RI/ 化学 慣行/ 有機 慣行/ 化学 (gCO2/m2 ) 25 NH4 and N2O Flux SRI Org. SRI Chem. Conv. Org. Conv. Chem Flux of Methane and Nitrous Oxide Flux: CO2 equivalent
  23. 23. Website: J - SRI study group http://www.iai.ga.a.u-tokyo.ac.jp/j-sri/ In Japan, too much rice presently produced  So why J-SRI Becoming important in many countries 1. Improve and apply Japanese technologies 2. Rice for other uses than eating SRI in future
  24. 24. Terima kasih

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