Author: Yamaji Eiji Title: Introduction of J-SRI : Japan Association of the System of Rice Intensification Event: Workshop to Enhance Cooperation and Sharing among SRI National Networks and Stakeholders in Asia Date: October 18-19, 2018 Venue: Leverage Business Hotel - Skudai, Johor Bahru, Malaysia

1. Introduction of J-SRI
Japan Association of the System
of Rice Intensification
October 18-19, 2018
Yamaji Eiji
Chair of J-SRI
Professor
The University of Tokyo Dewi SRI

2.  Established on April 11, 2007
 Opening Conference on July 2, 2007
 Membership : Anyone who is interested in SRI
 Number of Members : 200
Researcher 40, Government 20
Company 60, NPO members 40
Farmer 10, Student 30
 Informal Organization
Chair, Secretary General, Executive Secretaries
2
Basic Info of J-SRI

3.  Research Meetings : Every two months
 Field Visits : One or two times a year
 Public information:
http://www.iai.ga.a.u-tokyo.ac.jp/j-sri/index.html
http://www.iai.ga.a.u-tokyo.ac.jp/j-sri/index-e.html
 Publication: SRI Book in 2011
 Individual research in researcher fields and in farmers’
fields
 Joint Research in Lombok Island, Indonesia
 Overseas surveys in many countries
 Enhancement in Lao, Cambodia, Indonesia, Kenya, etc
 Very Few Trials by Farmers 3
Operation of J-SRI

4. Rice Farming in Japan
4
Young
seedling
farmers
Wide
spacing
farmers
Large-sized Field
+
Mechanized
Intermittent
Irrigation at ripening
stage
Organic
farming

5. Innovation in Rice Farming
5
Young
seedling
farmers
Wide
spacing
farmers
Large-sized Field
+
Mechanized
Intermittent
Irrigation at ripening
stage
Organic
farming
SRI
Japanese Style

6. 6
Experimental Results in Lombok
(2007 – 2009 )
0
5,000
10,000
15,000
20,000
25,000
30,000
35,000
40,000
0 10 20 30 40 50 60 70 80 90 100
Days after transplanted
Accumulatedirrigationwateramount
(Litter/plot)
5 days dry 10 days dry
15 days dry 20 days dry
Continuous

7. 7
Experimental Results in Fukushima, Japan
(2015)

8. Direction of Japanese SRI
Reason to Study SRI in Japan
Concentration of all techniques
Contribute to international cooperation
Utilize for bio energy
Environmentally friendly agriculture
Constraints
Weeding equipment not developed
Field homogeneity in large-sized field
How to contribute to Asian-wide alliance
8

9. 9

10. 10

11. 532
531 527
豐年三小圳
SRI 地號 532
SRI 地號 531
SRI 地號 527+地號 525-
7~527-4
慣行田地號 533
慣行田地號 528
慣行田地號 526