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The Progress of SRI in Super Hybrid Rice Dr. Ma Guohui, Deputy DG & Professor  China National Hybrid Rice R & D Center 28 February, 2010, Hangzhou
 
2003.3.1-3. 杭州
1. Key elements of SRI & M-SRI 2. Major progress in M-SRI 3. Key issues for SRI improvement Outline
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],1. Key elements of SRI & M-SRI
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],B.  Key elements of  Modified SRI
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],2. Major progress in M-SRI
Yield differences between varieties by SRI and Ck  Yield advantages by M-SRI :  3.6-10.5% over CK  Varieties applied: longer growth duration, vigorous tillering, bigger panicles, and resistant to lodging
1 )  SRI used with 7 new hybrids showed yield increase, producing yields of more than 800 kg/mu (12 t/ha) 2 ) Spacing: 26- 30×30cm ; 3 ) Showed yield differences with M-SRI between varieties Yield differences between varieties with SRI 图 1. SRI 改良技术平均产量效果比较 图 2.  SRI 改良技术最高产量效果比较
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],不同育秧方法产量差异比较(两优培九) 635.7kg/ 亩 602.5kg / 亩 525kg / 亩
Yield components difference in different nurseries Treatment in nursery Yield ( t/ha ) Panicles/ 667m 2 Spikelets per panicle Filled grains per panicle Grain weight ( g ) Upland tray nursery 11.13 17.38 191.5 172.3 24.78 Upland  nursery 10.31 14.52 212.8 186.9 25.33 Wet tray nursery 9.86 13.93 203.1 183 25.8 Wet  Nursery 9.74 15.1 199.9 167.8 25.61
3) Reasonable (optimal) spacing and suitable seedling age  提出了“适龄早栽、合理稀植”改良型强化栽培群体调控技术 Transplanting age for high yield : Leaf age =  2-5 leaves Spacing  : 水稻强化栽培要重视稀植,但必须  是合理稀植 .  Hunan :  8000 ~ 10000 Pl/667m2 Sichuan : 6000 ~ 9000 Pl//667m2 Guangdong:  8000 ~ 10000 Pl//667m2
Yield at different transplanting leaf ages 不同叶龄处理间产量没有显著差异,可以适当增大强化栽培的移栽叶龄  . Leaf age Spikelets Grains per panicle Seed setting rate (%) Grain weight (g) Yield (t/ha) 2 140.7 123.2 87.64 31.68 7.74 3 137.27 118.2 86.15 31.27 7.82 4 141.87 123.9 87.25 31.60 7.68 5 141.2 123.9 87.73 31.51 7.75
水稻强化栽培要重视稀植,但必须是合理稀植  Yields with different spacing place  Treatment (hills/667m 2 )  Panicles (×10,000 /667 m 2 )  Spiklets per  panicle Grains  per  panicle Seed setting rate ( % )  Grain weight (g)  Yield (kg/667m 2 )  Hunan 6,000 12.7 271.7 237.5 87.4 25.4 669.6 8,000 15.9 272.3 235.5 86.5 25.5 825.9 10,000 16.3 268.1 227.1 84.7 25.4 816.3 12,000 16.1 285.3 223.7 78.4 25.3 714.4 Sichuan 3,000 10.2 222 181 81.5 27.9 515.1 6,000 13 232.2 187.8 80.7 28.23 689.2 9,000 16.1 228 179 78.5 28.35 817.0 Guang-dong 6,000 13.5 215.2 176 81.8 28 665.3 8,000 16.3 216.9 169.85 78.3 27.8 769.7 10,000 17.6 213.3 165.1 77.4 27.6 802.0
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Establish nitrogen-saving technique for  high- yielding rice cultivation Progress: With nitrogen-saving technique,  a super high-yield of  12t/ha  more, but with a lower amount of N at  231.0-255.0 kg/ha   Varieties Highest yield ( t/ha ) Purity of N applied  ( kg/ha )   Xieyou 9019 8.90 300.0 Liangyou 293 12.14 231.0 Liangyoupeijiu 12.26 255.0
施肥方式对水稻强化栽培 LAI 和总颖花量的影响 Effects of  fertilization application manners on  LAI and total spikelets with  SRI 施肥水平 施肥方法 抽穗 (LAI) 成熟 (LAI) 下降速率( % ) 总颖花数 (10 7 /667m 2 ) 粒 叶 比 ( 粒 /cm 2 ) Yield (kg/mu) A1 9kg/mu B1/org. 6.5 3.1 52.3 2.60 0.600 612.9 B2/chem 7.4 2.7 63.5 3.25 0.658 656.4 B3/o+c 6.9 2.9 58.0 3.10 0.673 685.1 A2 12kg/mu B1/org. 7.5 3.6 52.0 3.23 0.646 688.2  B2/chem 8.2 2.5 69.5 3.44 0.628 663.0 B3/o+c 7.6 2.8 63.2 3.36 0.663 716.8
同等施肥水平强化栽培产量明显提高,同时氮素利用率均较对照高,提高幅度 5.7 - 25.9% . 说明强化栽培在不增加氮素用量或者适当降低的情况下,也能获得高产 .   Nitrogen-saving effects with yields Cultivation method N ( kg ) Yield (kg/667m2) N rate (%) M-SRI over CK (+/-%)  M-SRI 12.0 653.7 54.3 5.7 10.8 (less N by 10% ) 648.1 59.08 15.0 9.6 (less N by 20%) 621.0 64.69 25.9 CK 12.0 616.6 51.38 -
The differences of yield and nitrogen utilization between slow-release fertilizers   Fig.3. Yield differences between slow-release fertilizers and nitrogen applications  ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Nitrogen-saving effects of  slow-release fertilizer
Optimized nitrogen rate and  diminishing marginal yield analysis Yield response to fertilizer N rate ,[object Object],[object Object],[object Object],N0     N90    N135     N180    N225    N270
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
不同灌溉方式灌溉水利用效率、水分利用率比较 Differences of WPE and WUE in varied water irrigation models   处 理  Treatments 有效穗 Panicle ×10,000 /667m2 结实率 Seed setting rate  (%)  产量 Yield (g/hill)   灌溉水利用效率 WPE (kg.m- 3 )   水分利用率 WUE (Pn/TR/10- 3 )   湿润灌溉 /WWI 10.6A 82.2 42.6 2.15 2.65 节水灌溉 /WSI 11.0A 82.5 46.7 2.17 3.07 全程胁迫 /WII 7.2B 67.2 15.8 1.23 2.25 淹水灌溉 /WFI 10.1A 82.0 41.2 1.34 2.49
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Tillers differences between  cultivation methods  初步结论:不同栽培方式比较中,改良型强化栽培技术形成的分蘖数最多,有效穗数也最多 .
不同种植密度各级分蘖构成及成穗临界叶龄 Tiller composition of each level and critical leaf age for  productive tillers under different transplanting densities 注:一级分蘖中包括了主茎分蘖。 Note: The first-level tiller category includes main culm tiller A: 50cm×50cm;  B: 33.3cm×33.3cm; C: 26.6cm×26.6cm   组合 Combina-tion  处理 Treat-ment 最高分蘖期分蘖构成 ( 个 ) Tiller composition at  maximal tiller stage 成穗分蘖构成 ( 个 ) Tiller composition of productive tillers 分蘖成穗率 (%) Productive tiller rate 有效分蘖临界期 ( 月 / 日 ) Critical stage of effective tiller 有效分蘖临界 叶龄 Critical leaf age for effective tiller 一级 二级 三级 四级 一级 二级 三级 四级 一级 二级 三级 四级 两优 0293 A 10.2 28.7 30.1 5.5 8.7 21.3 12.8 1.2 85.3 74.2 42.5 21.8 7/11 12.3 B 8.9 22.3 17.9 1.3 7.1 15.2 3.4 0 79.8 68.2 19.0 0 7/2 10.5 C 8.3 19.6 12.9 0.3 5.3 9.2 2 0 63.9 46.9 15.5 0 6/27 9.3 GD-1S/RB207 A 8.0 19.8 12.3 0 8 19.2 7.7 0 100 97.0 62.6 0 7/16 12.5 B 7.4 17.4 6.7 0 7.2 12.6 2.2 0 97.3 72.4 32.8 0 7/6 10.9 C 6.3 14.3 3.7 0 5.2 8.1 0.1 0 82.5 56.6 2.7 0 6/27 8.9
不同栽培方式茎蘖成穗特性对产量的贡献 Panicle rate contribution of SRI & other methods to yield 处理 Treat-ments A =  > 200 spikelets/plant B = 100-199  spikelets/plant C = < 100  spikelets/plant 比例 Rate % 结实率 Seed setting rate% 贡献 Contri--bution % 比例 Rate % 结实率 Seed setting rate% 贡献 Contri--bution % 比例 Rate % 结实率 Seed setting rate% 贡献 Contri--bution % CK 11.4 84.5 19.8 57.1 86.2 60.8 31.5 75.4 19.4 SRI 22.8 91.2 36.0 60.0 90.5 57.4 17.1 80.2 6.7 M-SRI 17.5 89.6 29.3 63.6 87.1 63.0 18.9 85.5 7.7 宽窄 13.5 84.5 21.9 58.4 84.3 62.9 28.1 77.4 15.2
The difference of the dry matter accumulation and Harvest Index with varied cultivation methods 不同栽培方式对物质积累及经济系数的影响 齐穗期 Heading (kg/mu) 成熟期 Harvest (kg/mu) 茎输出率 Output of stem (%) 经济系数 HI CK 908.2 1165 16.2 0.535 SRI 804.7 1102 23.3 0.547 M-SRI 898.4 1214 24.4 0.560 宽窄 820.5 1207 25.0 0.555
Difference of panicle rates with varied cultivation methods 不同栽培方式对成穗率的影响   初步结论:不同栽培方式比较中,改良型强化栽培技术成穗能力较强, SRI 技术最低 .   SRI
不同栽培方式不同生育期根系干重比较 Difference of root weight with varied cultivation methods
Additional tools for SRI 7)  Small efficient implements used for SRI 研究形成了小型工具提高 SRI 技术的可操作性 进展: 改进了两种适于 SRI 技术的小型中耕器 进展: 适应 SRI 的软盘育秧精量播种器
8 ) System of M-SRI 建立了超级稻改良型强化栽培技术 软盘旱育 定位播种 适龄早载 合理稀植 节水节氮 垄体强根
Modified SRI for  Super hybrid rice Technical evaluation by Agricultural Department of Hunan Province in September 2005
Publications related to M-SRI 代表论文
Yield potential of M-SRI ,[object Object],[object Object],Year Address and area Tested by Yield (kg/667m 2 ) 2002/9/10 湖南龙山 , 121.5 亩 湖南省农业厅 817.4 2003/4/30  海南三亚, 1.16 亩 海南省农业厅 826.7 2003/9/16 湖南隆回, 102.2 亩 湖南省农业厅 801.9 2003/10/9 湖南湘潭, 102 亩 农业部科技教育司 804.4 2004/8/29 湖南中方, 107.2 亩 湖南省超级稻办公室 802.5 2004/9/20 湖南隆回, 102 亩 湖南省农业厅 809.9 2004/9/30 安徽安庆, 119 亩 安庆市科技局 802.3 2004/10/4 湖南汝城, 102 亩 湖南省超级稻办公室 803.3 2004/10/4  湖南溆浦, 112.88 亩 湖南省超级稻办公室 806.5 2009/10/18 湖南隆回, 102 亩 湖南省农业厅 851.7
A. Guinea:   Traits and yields of the hybrids with SRI Yield potential in Guinea Hybrid varieties Growth duration (days) Height of plants ( cm ) Total grains per panicle Filled grains per  panicle Seed set (%) 1000- grain weight ( g ) Effective Panicles (10 7  ha -1 ) Yields harvested (kg ha -1 ) GY037 113 104.31 138.36 124.32 89.85 28.14 2.817 8,436 GY036 114 98.23 160.18 142.13 88.73 25.88 2.645 7,794 GY035 104 112.93 136.30 122.90 90.17 34.65 2.601 7,527 GY034 112 95.79 151.20 122.52 81.03 29.06 2.700 7,714 GY033 110 92.75 121.33 95.33 78.57 31.25 2.269 5,592 GY032 120 109.30 151.75 125.95 82.99 31.80 2.952 9,232
Zhun-S/527
Liangyou 293
Transplanting Direct seeding Seedling broadcasting No-tillage cultivation 3.  Key issues for SRI improvement SRI should be more diversified to deal with  the great diversity  of rice cultivation conditions
[object Object],[object Object],[object Object],[object Object],Merge or integrate?  SRI +  Mechanization?  +  Seeding  +  ?
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Happy  Festival of Lanterns! 元宵节快乐! For any information, please contact: maguohui@hhrrc.ac.cn

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1007 The Progress of the System of Rice Intensification in Super Hybrid Rice

  • 1. The Progress of SRI in Super Hybrid Rice Dr. Ma Guohui, Deputy DG & Professor China National Hybrid Rice R & D Center 28 February, 2010, Hangzhou
  • 2.  
  • 4. 1. Key elements of SRI & M-SRI 2. Major progress in M-SRI 3. Key issues for SRI improvement Outline
  • 5.
  • 6.
  • 7.
  • 8. Yield differences between varieties by SRI and Ck Yield advantages by M-SRI : 3.6-10.5% over CK Varieties applied: longer growth duration, vigorous tillering, bigger panicles, and resistant to lodging
  • 9. 1 ) SRI used with 7 new hybrids showed yield increase, producing yields of more than 800 kg/mu (12 t/ha) 2 ) Spacing: 26- 30×30cm ; 3 ) Showed yield differences with M-SRI between varieties Yield differences between varieties with SRI 图 1. SRI 改良技术平均产量效果比较 图 2. SRI 改良技术最高产量效果比较
  • 10.
  • 11. Yield components difference in different nurseries Treatment in nursery Yield ( t/ha ) Panicles/ 667m 2 Spikelets per panicle Filled grains per panicle Grain weight ( g ) Upland tray nursery 11.13 17.38 191.5 172.3 24.78 Upland nursery 10.31 14.52 212.8 186.9 25.33 Wet tray nursery 9.86 13.93 203.1 183 25.8 Wet Nursery 9.74 15.1 199.9 167.8 25.61
  • 12. 3) Reasonable (optimal) spacing and suitable seedling age 提出了“适龄早栽、合理稀植”改良型强化栽培群体调控技术 Transplanting age for high yield : Leaf age = 2-5 leaves Spacing : 水稻强化栽培要重视稀植,但必须 是合理稀植 . Hunan : 8000 ~ 10000 Pl/667m2 Sichuan : 6000 ~ 9000 Pl//667m2 Guangdong: 8000 ~ 10000 Pl//667m2
  • 13. Yield at different transplanting leaf ages 不同叶龄处理间产量没有显著差异,可以适当增大强化栽培的移栽叶龄 . Leaf age Spikelets Grains per panicle Seed setting rate (%) Grain weight (g) Yield (t/ha) 2 140.7 123.2 87.64 31.68 7.74 3 137.27 118.2 86.15 31.27 7.82 4 141.87 123.9 87.25 31.60 7.68 5 141.2 123.9 87.73 31.51 7.75
  • 14. 水稻强化栽培要重视稀植,但必须是合理稀植 Yields with different spacing place Treatment (hills/667m 2 ) Panicles (×10,000 /667 m 2 ) Spiklets per panicle Grains per panicle Seed setting rate ( % ) Grain weight (g) Yield (kg/667m 2 ) Hunan 6,000 12.7 271.7 237.5 87.4 25.4 669.6 8,000 15.9 272.3 235.5 86.5 25.5 825.9 10,000 16.3 268.1 227.1 84.7 25.4 816.3 12,000 16.1 285.3 223.7 78.4 25.3 714.4 Sichuan 3,000 10.2 222 181 81.5 27.9 515.1 6,000 13 232.2 187.8 80.7 28.23 689.2 9,000 16.1 228 179 78.5 28.35 817.0 Guang-dong 6,000 13.5 215.2 176 81.8 28 665.3 8,000 16.3 216.9 169.85 78.3 27.8 769.7 10,000 17.6 213.3 165.1 77.4 27.6 802.0
  • 15.
  • 16. Establish nitrogen-saving technique for high- yielding rice cultivation Progress: With nitrogen-saving technique, a super high-yield of 12t/ha more, but with a lower amount of N at 231.0-255.0 kg/ha Varieties Highest yield ( t/ha ) Purity of N applied ( kg/ha ) Xieyou 9019 8.90 300.0 Liangyou 293 12.14 231.0 Liangyoupeijiu 12.26 255.0
  • 17. 施肥方式对水稻强化栽培 LAI 和总颖花量的影响 Effects of fertilization application manners on LAI and total spikelets with SRI 施肥水平 施肥方法 抽穗 (LAI) 成熟 (LAI) 下降速率( % ) 总颖花数 (10 7 /667m 2 ) 粒 叶 比 ( 粒 /cm 2 ) Yield (kg/mu) A1 9kg/mu B1/org. 6.5 3.1 52.3 2.60 0.600 612.9 B2/chem 7.4 2.7 63.5 3.25 0.658 656.4 B3/o+c 6.9 2.9 58.0 3.10 0.673 685.1 A2 12kg/mu B1/org. 7.5 3.6 52.0 3.23 0.646 688.2 B2/chem 8.2 2.5 69.5 3.44 0.628 663.0 B3/o+c 7.6 2.8 63.2 3.36 0.663 716.8
  • 18. 同等施肥水平强化栽培产量明显提高,同时氮素利用率均较对照高,提高幅度 5.7 - 25.9% . 说明强化栽培在不增加氮素用量或者适当降低的情况下,也能获得高产 . Nitrogen-saving effects with yields Cultivation method N ( kg ) Yield (kg/667m2) N rate (%) M-SRI over CK (+/-%) M-SRI 12.0 653.7 54.3 5.7 10.8 (less N by 10% ) 648.1 59.08 15.0 9.6 (less N by 20%) 621.0 64.69 25.9 CK 12.0 616.6 51.38 -
  • 19.
  • 20.
  • 21.
  • 22. 不同灌溉方式灌溉水利用效率、水分利用率比较 Differences of WPE and WUE in varied water irrigation models 处 理 Treatments 有效穗 Panicle ×10,000 /667m2 结实率 Seed setting rate (%) 产量 Yield (g/hill) 灌溉水利用效率 WPE (kg.m- 3 ) 水分利用率 WUE (Pn/TR/10- 3 ) 湿润灌溉 /WWI 10.6A 82.2 42.6 2.15 2.65 节水灌溉 /WSI 11.0A 82.5 46.7 2.17 3.07 全程胁迫 /WII 7.2B 67.2 15.8 1.23 2.25 淹水灌溉 /WFI 10.1A 82.0 41.2 1.34 2.49
  • 23.
  • 24. Tillers differences between cultivation methods 初步结论:不同栽培方式比较中,改良型强化栽培技术形成的分蘖数最多,有效穗数也最多 .
  • 25. 不同种植密度各级分蘖构成及成穗临界叶龄 Tiller composition of each level and critical leaf age for productive tillers under different transplanting densities 注:一级分蘖中包括了主茎分蘖。 Note: The first-level tiller category includes main culm tiller A: 50cm×50cm; B: 33.3cm×33.3cm; C: 26.6cm×26.6cm 组合 Combina-tion 处理 Treat-ment 最高分蘖期分蘖构成 ( 个 ) Tiller composition at maximal tiller stage 成穗分蘖构成 ( 个 ) Tiller composition of productive tillers 分蘖成穗率 (%) Productive tiller rate 有效分蘖临界期 ( 月 / 日 ) Critical stage of effective tiller 有效分蘖临界 叶龄 Critical leaf age for effective tiller 一级 二级 三级 四级 一级 二级 三级 四级 一级 二级 三级 四级 两优 0293 A 10.2 28.7 30.1 5.5 8.7 21.3 12.8 1.2 85.3 74.2 42.5 21.8 7/11 12.3 B 8.9 22.3 17.9 1.3 7.1 15.2 3.4 0 79.8 68.2 19.0 0 7/2 10.5 C 8.3 19.6 12.9 0.3 5.3 9.2 2 0 63.9 46.9 15.5 0 6/27 9.3 GD-1S/RB207 A 8.0 19.8 12.3 0 8 19.2 7.7 0 100 97.0 62.6 0 7/16 12.5 B 7.4 17.4 6.7 0 7.2 12.6 2.2 0 97.3 72.4 32.8 0 7/6 10.9 C 6.3 14.3 3.7 0 5.2 8.1 0.1 0 82.5 56.6 2.7 0 6/27 8.9
  • 26. 不同栽培方式茎蘖成穗特性对产量的贡献 Panicle rate contribution of SRI & other methods to yield 处理 Treat-ments A = > 200 spikelets/plant B = 100-199 spikelets/plant C = < 100 spikelets/plant 比例 Rate % 结实率 Seed setting rate% 贡献 Contri--bution % 比例 Rate % 结实率 Seed setting rate% 贡献 Contri--bution % 比例 Rate % 结实率 Seed setting rate% 贡献 Contri--bution % CK 11.4 84.5 19.8 57.1 86.2 60.8 31.5 75.4 19.4 SRI 22.8 91.2 36.0 60.0 90.5 57.4 17.1 80.2 6.7 M-SRI 17.5 89.6 29.3 63.6 87.1 63.0 18.9 85.5 7.7 宽窄 13.5 84.5 21.9 58.4 84.3 62.9 28.1 77.4 15.2
  • 27. The difference of the dry matter accumulation and Harvest Index with varied cultivation methods 不同栽培方式对物质积累及经济系数的影响 齐穗期 Heading (kg/mu) 成熟期 Harvest (kg/mu) 茎输出率 Output of stem (%) 经济系数 HI CK 908.2 1165 16.2 0.535 SRI 804.7 1102 23.3 0.547 M-SRI 898.4 1214 24.4 0.560 宽窄 820.5 1207 25.0 0.555
  • 28. Difference of panicle rates with varied cultivation methods 不同栽培方式对成穗率的影响 初步结论:不同栽培方式比较中,改良型强化栽培技术成穗能力较强, SRI 技术最低 . SRI
  • 29. 不同栽培方式不同生育期根系干重比较 Difference of root weight with varied cultivation methods
  • 30. Additional tools for SRI 7) Small efficient implements used for SRI 研究形成了小型工具提高 SRI 技术的可操作性 进展: 改进了两种适于 SRI 技术的小型中耕器 进展: 适应 SRI 的软盘育秧精量播种器
  • 31. 8 ) System of M-SRI 建立了超级稻改良型强化栽培技术 软盘旱育 定位播种 适龄早载 合理稀植 节水节氮 垄体强根
  • 32. Modified SRI for Super hybrid rice Technical evaluation by Agricultural Department of Hunan Province in September 2005
  • 33. Publications related to M-SRI 代表论文
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  • 35. A. Guinea: Traits and yields of the hybrids with SRI Yield potential in Guinea Hybrid varieties Growth duration (days) Height of plants ( cm ) Total grains per panicle Filled grains per panicle Seed set (%) 1000- grain weight ( g ) Effective Panicles (10 7 ha -1 ) Yields harvested (kg ha -1 ) GY037 113 104.31 138.36 124.32 89.85 28.14 2.817 8,436 GY036 114 98.23 160.18 142.13 88.73 25.88 2.645 7,794 GY035 104 112.93 136.30 122.90 90.17 34.65 2.601 7,527 GY034 112 95.79 151.20 122.52 81.03 29.06 2.700 7,714 GY033 110 92.75 121.33 95.33 78.57 31.25 2.269 5,592 GY032 120 109.30 151.75 125.95 82.99 31.80 2.952 9,232
  • 38. Transplanting Direct seeding Seedling broadcasting No-tillage cultivation 3. Key issues for SRI improvement SRI should be more diversified to deal with the great diversity of rice cultivation conditions
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  • 41. Happy Festival of Lanterns! 元宵节快乐! For any information, please contact: maguohui@hhrrc.ac.cn