Email
Like
Liked ×
Save
Private Content
Embed
Loading embed code…
We have emailed the verification/download link to "".
Login to your email and click the link to download the file directly.

To request the link at a different email address, update it here. Close
Validation messages. Success message. Fail message.

Check your bulk/spam folders if you can't find our mail.
Loading

+ Follow

0412 Development of System of Rice Intensification for Rice Production in China

by SRI-Rice, CIIFAD, Cornell University

2,009 views

Presenter: Zhu Defeng ...

Presenter: Zhu Defeng
Slides from a powerpoint presentationmade to a workshop on SRI, held at theWorld Rice Research Conference,Tsukuba, Japan, November 7, 2004

Audience: World Rice Research Conference, Japan

Subject Country: China

Accessibility

View text version

Categories

Upload Details

Uploaded via SlideShare as Microsoft PowerPoint

Usage Rights

© All Rights Reserved

File a copyright complaint

1 Embed 9

http://www.slideshare.net

9

Statistics

Likes: 2
Downloads: 45
Comments: 0
Embed Views: 9
Views on SlideShare: 2,000
Total Views: 2,009

Two fields of rice growth with normal methods and 3-S. The phenotypical differences are evident, much as seen with SRI.
Seedlings are started in heated greenhouses when there is still snow on the ground.

2 Likes

Mohammed1955 2 years ago
shabirkhan 2 years ago

0412 Development of System of Rice Intensification for Rice Production in China Presentation Transcript

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
- Status of rice production in China
- Problems in rice production
- Trends of rice production technology
- Basic principles and opportunity of SRI in China
- Factors in rice growth and yield in SRI
- SRI practice and demonstration
1. Status of Rice Production in China
- Rice in China:
- Staple food in China for about 60 % of the population
- Less than 30 % of the grain crop area, but 40% of grain production
- China in World:
- 23% of rice area
- 37% of rice production
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 planting area (%) Indica inbred 17.3 Japonica inbred 27.6 Two-line hybrid 5.4 Three-line hybrid 49.8
Percentage of hybrid planting area to national rice area
2. Problems in Rice Production
Limitations to rice production in China
- Low profitability at present
- Transfer of agricultural labor to
- industrial sector and urban centers
- Low resource-use efficiency
- Small-scale farm management
Costs of rice production Items Percentage(%) Labour 45.9 Fertilizers 17.9 Pesticides 4.9 Machine/animal power 5.8 Irrigation /drainage 12.9
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
~ 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 Medium Strong Panicle size Medium Large
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
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 growth, large panicle S-M-D irrigation Water saving, root growth, and fertilizer use efficiency Organic/chemical fertilizer Soil fertility
Contributions of SRI Practice Contribution Sparse planting with younger seedling Labor-saving S-M-D irrigation Water-saving Organic/chemical fertilizer Sustainable soil fertility
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 (%) 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
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
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 S1 4879.9 22.4 S2 3806.7 39.5 S3 3477.0 44.7
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 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
SRI practice in South China (hybrid)
- 1) Transplant seedlings with 4-5 leaves
- 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
- 3) Shallow-moisture-dry irrigation system
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)
- 1) 5-leaf seedling (about 45 days age) because of cold conditions at planting time
- 2) Sparse planting, 14-18 hills/m 2 with 1-2 plants for large panicle/strong tillering CV
- 3) Shallow-moisture-dry irrigation system
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
- 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
THANK YOU