0429 Development of System of Rice Intensification for Rice Production in China

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Presented by: Zhu Defeng …

Presented by: Zhu Defeng

Presented at: Workshop on SRI, World Rice Research Conference, Tsukuba

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  • Two fields of rice growth with normal methods and 3-S. The phenotypical differences are evident, much as seen with SRI.

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  • 1. Development of SRI for Rice Production in China Slides from a powerpoint presentation made to a workshop on SRI, held at the World Rice Research Conference, Tsukuba, Japan, November 7, 2004
    • Dr. Zhu Defeng
    • China National Rice Research Institute
    • Hangzhou, PRC
  • 2. Basic principles of SRI and functions Water saving, root growth, and fertilizer use efficiency Irrigation management Soil fertility Organic/chemical fertilizer Tiller growth, large panicle Sparse planting Tiller growth Younger seedlings Function Basic principle
  • 3. Contributions of SRI Sustainable soil fertility Organic/chemical fertilizer Water saving Irrigation management Labor saving Sparse planting with younger seedlings Contribution Practice
  • 4. Comparison of yield in SRI and check (Jiayou 99 variety), 2003 9.3 11.1 Yield (t/hm 2 ) 100.0 25.1 92.6 191 209.6 CK 119.4 25.3 91.2 222.8 215.7 SRI Relative yield(%) Grain weight (g /1000) Fertility (%) Grains (No./ panicle Panicle (No./m 2 ) TR
  • 5.  
  • 6. Analysis of factors of yield increase in SRI compared with check 100.0 1.73 Total 4.3 0.07 Grain weight 80.1 1.38 Grain no. 15.7 0.27 Panicle no. Contribution (%) Yield (t/hm 2 ) Item
  • 7. Pattern of tiller growth in SRI and check
  • 8. Light penetration
  • 9. Experiment of water saving at CNRRI
  • 10. Comparison of water consumption in SRI and check 39.5 3806.7 S2 44.7 3477.0 S3 22.4 4879.9 S1 0.0 6289.8 CK Rate of saved water (%) Water consumption (m3/ha) Treatment
  • 11. Transplanting in shallow water layer
  • 12. 33 DAS
  • 13.  
  • 14.  
  • 15. Heavy panicles
  • 16. Normal 3-S (SRI)
  • 17. Sparse sowing Check
  • 18. Wide row planting
  • 19. Moist soil
  • 20.  
  • 21. Conclusions
    • Rice management technology that matches new varieties/hybrids is needed to further increase yield
    • SRI principles match the current trends in the advance of rice cultivation technology
    • Site-specific SRI technology is needed to for raising the yields of Super-Rice and for greater water productivity
  • 22. THANK YOU