Presenter: Shuichi Sato Audience: IRRI Workshop, Indonesia Subject Country: Indonesia

1. Water Saving for Paddy Cultivation by SRI (System of Rice Intensification) Experience of Decentralized Irrigation System Improvement Project in Eastern Region of Indonesia (DISIMP) JBIC ODA Loan 7 March 2006 by Shuichi SATO Team Leader of the Consultant for DISIMP Nippon Koei Co., Ltd.

3. Outline of SSIMP-DISIMP Project Objective Poverty alleviation by improving agricultural productivity and farmers’ income through water resources and irrigation development / improvement and capacity building in Eastern Region of Indonesia . Performance of SSIMP-DISIMP (JBIC Loan)

5. SRI System of Rice Intensification

8. Comparison of Seedlings, SRI vs. Non-SRI Non-SRI Seedlings (30 days) SRI Seedling (10 days)

10. Field Preparation for SRI Digging of filed drain in plot for SRI Intermittent Irrigation Drainage pipe at plot bund Marking for transplanting (30 cm x 30 cm)

11. Preparation of Seedlings and SRI Transplanting Seeding on nursery plate young seedling (10 days after seeding) SRI Transplanting of single young seedling (7 – 14 days after seeding) at wider spacing (30 cm x 30 cm) Nursery plate rack

12. Weeding by Weeder SRI Rotary Weeder Developed by DISIMP Consultant Conventional Weeder from Java Weeder ( for Muddy soil)

13. Rice Plant Growth (1) 10 DAT DAT = Day After Transplanting 21 DAT 41 DAT 62 DAT

14. Rice Plant Growth (2) 72 DAT 89 DAT 105 DAT

15. Paddy Yield of SRI in DISIMP (2002-05) Note: * = Dry un-husked rice (14% moisture content)

17. Intermittent Irrigation Wet Dry Wet-Dry Cycle is different by lot condition, soil type, and water availability. Dry for 3 weeks

18. Sambelia SRI Experimental Station, DISIMP Test Plot (5 m x 5 m, 24 plots) General Layout of Sambelia SRI Experimental Station Water Measurement System To Mataram (2 hours)

19. SRI Trial in Sambelia Station, DISIMP First Planting Test 2005/2006 Land Preparation (30-Sep-05) 3 DAT (14-Oct-05) 27 DAT (7-Nov-05) 43 DAT (23-Nov-05) 72 DAT (22-Dec-05) 115 DAT (4-Feb-06) DAT = Days After Transplanting

20. Field Test for Intermittent Irrigation Case-1: Case-2: Case-3: Case-4: SRI Transplanting (10-day seedling, 30cm x 30 cm, 1 each) + Intermittent Irrigation SRI Transplanting (10-day seedling, 30cm x 30 cm, 1 each) + Intermittent Irrigation Non-SRI Transplanting (25-day seedling, 20cm x 25 cm, 4 each) + Continuous Irrigation Non-SRI Transplanting (25-day seedling, 20cm x 25 cm, 4 each) + Intermittent Irrigation Field Test Test Results Case-1: Case-2: Case-3: Case-4: Total Irrigation Supply = 816 mm Total Irrigation Supply = 1,152 mm Total Irrigation Supply = 1,368 mm Total Irrigation Supply = 1,136 mm Paddy Yield = 5.12 t/ha Paddy Yield = 4.46 t/ha Paddy Yield = 2.95 t/ha Paddy Yield = 3.40 t/ha Case-1: Case-2: Case-3: Case-4: Rice Variety = Cihereng Irrigation stopped on 1-Jan-06 due to rainfall Irrigation Practice Oct. 2005 Nov. 2005 Dec. 2005 Jan. 2006 Feb. 2006 11 Oct. 11 Oct. 26 Oct. 26 Oct. 3 Feb. 4 Feb. 3 Feb. 4 Feb. Harvest Transplanting

22. The End SRI will contribute to mitigate present and future global issues of Food , Poverty , Water , & Environment