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Development of SRI for Rice Production in China Slides from a powerpoint presentation made to a workshop on SRI, held at t...
<ul><li>Status of rice production in China  </li></ul><ul><li>Problems in rice production </li></ul><ul><li>Trends of rice...
1.  Status of Rice Production in China
<ul><li>Rice in China: </li></ul><ul><li>Staple food in China for about  60 % of the population </li></ul><ul><li>Less tha...
Percentage of grain crop area
Percentage of grain crop production
Trend of rice production in China
 
Percentage of planting area of different types of rice  and average planting area for types of variety Type Percentage of ...
Percentage of hybrid planting area to national rice area
2.  Problems in Rice Production
Limitations to rice production in China <ul><li>Low profitability at present </li></ul><ul><li>Transfer of agricultural la...
Costs of rice production Items Percentage(%) Labour 45.9 Fertilizers 17.9 Pesticides 4.9 Machine/animal power 5.8 Irrigati...
Nitrogen 180kg/ha ave. -- only 25-30% efficiency Pesticide 5-6 times of application for E/L rice 6-8 times of application ...
~  120M farms are planting rice at present Average area per farm -- 0.2-0.4 ha Small-scale of production
3. Trends in Rice  Production Technology
Changes in main traits of dominant varieties Period 60s -80s After 90s Plant height (cm) 80-100 100-125 Tillering capacity...
Changes of cultivation practice S: shallow water layer, M: moisture, D: dry Period 50s-60s 70s-80s 90s After 90s Plant den...
4.  Basic Principles and Opportunity of SRI in China
Basic principles of SRI and functions Basic principle Function Younger seedling  Tiller growth Sparse planting Tiller grow...
Contributions of SRI Practice Contribution Sparse planting with younger seedling  Labor-saving S-M-D irrigation Water-savi...
5.  Factors in Rice Growth and Yield with SRI
1) Comparison of yield in SRI and check (Jiayou 99 variety, 2003) TR Panicle (No./m 2 ) Grains  (No./ panicle Fertility  (...
 
 
Analysis of factors of yield increase  in SRI compared with check Item Yield (t/hm 2 ) Contribution (%) Panicle no. 0.27 1...
2)  Pattern of tiller growth in SRI and check
3)  Light penetration
4) Effect of planting type on angle of tiller at 45 DAS
Experiment of water saving in CNRRI 5)  Water saving
Experiment of water saving in CNRRI
Comparison of water consumption in SRI and check Treatment Water consumption (m3/ha) Rate of saved water (%) CK 6289.8 0.0...
5. SRI Practice and Demonstration
1) SRI demonstrations  in Zhejiang
Yield and location of SRI demonstrations in Zhejiang province (2004)   Location Variety Area (ha) Yield  (t/ha) Tiantai Ne...
SRI practice in South China (hybrid) <ul><li>1) Transplant seedlings with 4-5 leaves </li></ul><ul><li>2) Sparse planting,...
Seedling raising  in tray
3 DAS
16 DAS
Land preparation in moist soil
Transplanting in shallow water layer
25 DAS After rainfall or irrigation
33 DAS
45 DAS Without water layer
65 DAS 53 DAS
 
 
Heavy panicle
2)  SRI Demonstrations  in Northeast Region
SRI (3-S) practice in Northeast China (Japonica) <ul><li>1) 5-leaf seedling (about 45 days age) because of cold conditions...
Normal 3-S
Seedling raising in tray
Seedling raising in upland seedbed
Seedlings are started at the end of winter in plastic greenhouses
 
Sparse sowing check
Wide row planting
Moist soil
 
Conclusions <ul><li>Rice management technology that matches new varieties/hybrids is needed to further increase yield </li...
THANK  YOU
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0412 Development of System of Rice Intensification for Rice Production in China

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Presenter: Zhu Defeng
Slides from a powerpoint presentation made to a workshop on SRI, held at the World Rice Research Conference, Tsukuba, Japan, November 7, 2004

Audience: World Rice Research Conference, Japan

Subject Country: China

Published in: Technology, Business
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0412 Development of System of Rice Intensification for Rice Production in China

  1. 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 <ul><li>Dr. Zhu Defeng </li></ul><ul><li>China National Rice Research Institute </li></ul><ul><li>Hangzhou, PRC </li></ul>
  2. 2. <ul><li>Status of rice production in China </li></ul><ul><li>Problems in rice production </li></ul><ul><li>Trends of rice production technology </li></ul><ul><li>Basic principles and opportunity of SRI in China </li></ul><ul><li>Factors in rice growth and yield in SRI </li></ul><ul><li>SRI practice and demonstration </li></ul>
  3. 3. 1. Status of Rice Production in China
  4. 4. <ul><li>Rice in China: </li></ul><ul><li>Staple food in China for about 60 % of the population </li></ul><ul><li>Less than 30 % of the grain crop area, but 40% of grain production </li></ul><ul><li>China in World: </li></ul><ul><li>23% of rice area </li></ul><ul><li>37% of rice production </li></ul>
  5. 5. Percentage of grain crop area
  6. 6. Percentage of grain crop production
  7. 7. Trend of rice production in China
  8. 9. Percentage of planting area of different types of rice and average planting area for types of variety Type Percentage of planting area (%) Indica inbred 17.3 Japonica inbred 27.6 Two-line hybrid 5.4 Three-line hybrid 49.8
  9. 10. Percentage of hybrid planting area to national rice area
  10. 11. 2. Problems in Rice Production
  11. 12. Limitations to rice production in China <ul><li>Low profitability at present </li></ul><ul><li>Transfer of agricultural labor to </li></ul><ul><li>industrial sector and urban centers </li></ul><ul><li>Low resource-use efficiency </li></ul><ul><li>Small-scale farm management </li></ul>
  12. 13. Costs of rice production Items Percentage(%) Labour 45.9 Fertilizers 17.9 Pesticides 4.9 Machine/animal power 5.8 Irrigation /drainage 12.9
  13. 14. Nitrogen 180kg/ha ave. -- only 25-30% efficiency Pesticide 5-6 times of application for E/L rice 6-8 times of application for single rice Water Irrigation of 8000-1200M 3 /ha Low resource-use efficiency
  14. 15. ~ 120M farms are planting rice at present Average area per farm -- 0.2-0.4 ha Small-scale of production
  15. 16. 3. Trends in Rice Production Technology
  16. 17. Changes in main traits of dominant varieties Period 60s -80s After 90s Plant height (cm) 80-100 100-125 Tillering capacity Medium Strong Panicle size Medium Large
  17. 18. Changes of cultivation practice S: shallow water layer, M: moisture, D: dry Period 50s-60s 70s-80s 90s After 90s Plant density Sparse Dense Sparse More sparse Irrigation Deep Deep-Shallow S-M-D S-M-D
  18. 19. 4. Basic Principles and Opportunity of SRI in China
  19. 20. Basic principles of SRI and functions Basic principle Function Younger seedling Tiller growth Sparse planting Tiller growth, large panicle S-M-D irrigation Water saving, root growth, and fertilizer use efficiency Organic/chemical fertilizer Soil fertility
  20. 21. Contributions of SRI Practice Contribution Sparse planting with younger seedling Labor-saving S-M-D irrigation Water-saving Organic/chemical fertilizer Sustainable soil fertility
  21. 22. 5. Factors in Rice Growth and Yield with SRI
  22. 23. 1) Comparison of yield in SRI and check (Jiayou 99 variety, 2003) TR Panicle (No./m 2 ) Grains (No./ panicle Fertility (%) Grain weight (g /1000) Yield (t/hm 2 ) Relative yield(%) SRI 215.7 222.8 91.2 25.3 11.1 119.4 CK 209.6 191 92.6 25.1 9.3 100.0
  23. 26. Analysis of factors of yield increase in SRI compared with check Item Yield (t/hm 2 ) Contribution (%) Panicle no. 0.27 15.7 Grain no. 1.38 80.1 Grain weight 0.07 4.3 Total 1.73 100.0
  24. 27. 2) Pattern of tiller growth in SRI and check
  25. 28. 3) Light penetration
  26. 29. 4) Effect of planting type on angle of tiller at 45 DAS
  27. 30. Experiment of water saving in CNRRI 5) Water saving
  28. 31. Experiment of water saving in CNRRI
  29. 32. Comparison of water consumption in SRI and check Treatment Water consumption (m3/ha) Rate of saved water (%) CK 6289.8 0.0 S1 4879.9 22.4 S2 3806.7 39.5 S3 3477.0 44.7
  30. 33. 5. SRI Practice and Demonstration
  31. 34. 1) SRI demonstrations in Zhejiang
  32. 35. Yield and location of SRI demonstrations in Zhejiang province (2004) Location Variety Area (ha) Yield (t/ha) Tiantai Nei2you 6 6.8 12.1 Tiantai Liangyoupeijiu 10.0 11.7 Chengzhou Zhongzheyou 1 7.5 12.3 Lingan Zhongzheyou 1 7.6 10.7 Kaihua Zhongzheyou 1 7.2 12.2
  33. 36. SRI practice in South China (hybrid) <ul><li>1) Transplant seedlings with 4-5 leaves </li></ul><ul><li>2) Sparse planting, 12-15 hills/m 2 with 1 plant/hill for large panicle/strong tillering CV; or 15-18hills/m 2 with 1 plant for medium panicle/tillering CV </li></ul><ul><li>3) Shallow-moisture-dry irrigation system </li></ul>
  34. 37. Seedling raising in tray
  35. 38. 3 DAS
  36. 39. 16 DAS
  37. 40. Land preparation in moist soil
  38. 41. Transplanting in shallow water layer
  39. 42. 25 DAS After rainfall or irrigation
  40. 43. 33 DAS
  41. 44. 45 DAS Without water layer
  42. 45. 65 DAS 53 DAS
  43. 48. Heavy panicle
  44. 49. 2) SRI Demonstrations in Northeast Region
  45. 50. SRI (3-S) practice in Northeast China (Japonica) <ul><li>1) 5-leaf seedling (about 45 days age) because of cold conditions at planting time </li></ul><ul><li>2) Sparse planting, 14-18 hills/m 2 with 1-2 plants for large panicle/strong tillering CV </li></ul><ul><li>3) Shallow-moisture-dry irrigation system </li></ul>
  46. 51. Normal 3-S
  47. 52. Seedling raising in tray
  48. 53. Seedling raising in upland seedbed
  49. 54. Seedlings are started at the end of winter in plastic greenhouses
  50. 56. Sparse sowing check
  51. 57. Wide row planting
  52. 58. Moist soil
  53. 60. Conclusions <ul><li>Rice management technology that matches new varieties/hybrids is needed to further increase yield </li></ul><ul><li>SRI principles match the current trends in the advance of rice cultivation technology </li></ul><ul><li>Site-specific SRI technology is needed to for raising the yields of Super-Rice and for greater water productivity </li></ul>
  54. 61. THANK YOU

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