Poster presentation at the 4th International Rice Congress
Authors: Nurul Hidayati, Triadiati, and Iswandi Anas
Title: Physiological and morphological changes in rice plants under SRI
Venue: Bangkok International Trade and Exhibition Centre (BITEC), Bangkok, Thailand
Date: October 28-31, 2014
Poster at the 4th International Rice Congress
Presenter: Pascal Gbenou, Noukpo Agossou, Marjolein Visser
Title: Farmer Evaluation of the System of Rice Intesification and Conventional Rice Cultivation Methods in Benin
Venue: Bangkok International Trade and Exhibition Centre (BITEC), Bangkok, Thailand
Date: October 28-31, 2014
Poster presentation at the 4th International Rice Congress
Authors: Nurul Hidayati, Triadiati, and Iswandi Anas
Sukmasakti, and Rahayu Widyastuti
Title: Root morphology and anatomy of rice plants cultivated under SRI
Venue: Bangkok International Trade and Exhibition Centre (BITEC), Bangkok, Thailand
Date: October 28-31, 2014
Title: Conservation Agriculture and the System of Rice Intensification
Presented by: Erika Styger
Presented at: Special Exhibit/Event on Rice Production at Agritechnica
Venue and Date: Hannover, Germany November 15, 2013
PowerPoint presented Erika Styger at the First First Workshop on the System of Rice Intensification (SRI) in Latin America at EARTH University in Costa Rica, Oct. 31-Nov. 1, 2011
Poster presentation at the 4th International Rice Congress
Authors: Ngawang Chhogyel (presenter), Mahesh Ghimiray and Yadunath Bajgai
Title: Application of SRI Principles to Sustainable Rice Production in Bhutan
Venue: Bangkok International Trade and Exhibition Centre (BITEC), Bangkok, Thailand
Date: October 28-31, 2014
Poster presentation at the 4th International Rice Congress
Authors: Nurul Hidayati, Triadiati, and Iswandi Anas
Title: Physiological and morphological changes in rice plants under SRI
Venue: Bangkok International Trade and Exhibition Centre (BITEC), Bangkok, Thailand
Date: October 28-31, 2014
Poster at the 4th International Rice Congress
Presenter: Pascal Gbenou, Noukpo Agossou, Marjolein Visser
Title: Farmer Evaluation of the System of Rice Intesification and Conventional Rice Cultivation Methods in Benin
Venue: Bangkok International Trade and Exhibition Centre (BITEC), Bangkok, Thailand
Date: October 28-31, 2014
Poster presentation at the 4th International Rice Congress
Authors: Nurul Hidayati, Triadiati, and Iswandi Anas
Sukmasakti, and Rahayu Widyastuti
Title: Root morphology and anatomy of rice plants cultivated under SRI
Venue: Bangkok International Trade and Exhibition Centre (BITEC), Bangkok, Thailand
Date: October 28-31, 2014
Title: Conservation Agriculture and the System of Rice Intensification
Presented by: Erika Styger
Presented at: Special Exhibit/Event on Rice Production at Agritechnica
Venue and Date: Hannover, Germany November 15, 2013
PowerPoint presented Erika Styger at the First First Workshop on the System of Rice Intensification (SRI) in Latin America at EARTH University in Costa Rica, Oct. 31-Nov. 1, 2011
Poster presentation at the 4th International Rice Congress
Authors: Ngawang Chhogyel (presenter), Mahesh Ghimiray and Yadunath Bajgai
Title: Application of SRI Principles to Sustainable Rice Production in Bhutan
Venue: Bangkok International Trade and Exhibition Centre (BITEC), Bangkok, Thailand
Date: October 28-31, 2014
Speaker: Norman Uphoff
Title: Agroecological Opportunities with the System of Rice Intensification (SRI) and the System of Crop Intensification (SCI)
Date: June 25, 2021
Venue: online, presented in the International Webinar Series on Agroecology and Community Series
Title: ‘Differentiated Agronomies’ for Sustainable Rice Intensification : Towards an Alternative Policy Framework for Local Food Security in India
Authors: Ravindra Adusumilli, Debashish Sen, Sabarmatee, C. Shambu Prasad, Rob Schipper, Raj Kumar Kumawat
Presented at: First International Conference on Global Food Security
Venue: Noordwijkerhout, The Netherlands, 29th September to 2nd Oct, 2013
Presenter: Ram Bahadur Khadka
Title: New Directions for the System of Rice Intensification in Nepal: Mechanization and Biofertilizers
Date: December 9, 2016
Venue: Mann 102, Cornell University, Ithaca, NY
Title: Development of integrated rice-azolla-duck-fish farming systems with SRI methods for rice production in the Mekong River region, Vietnam
Presenter: Nghia Nguyen Soil Biology Laboratory, Department of Soil Science, College of Agriculture & Applied Biology, Cantho University, Cantho City, Vietnam
Venue: Cornell University
Date: July 1, 2015
Presenter: Lin Xianqing, CNRRI
Workshop on the System of Rice Intensification, Exchanging Experience in
China, the Democratic People's Republic of Korea and Internationally, organized and
hosted by the China National Rice Research Institute (CNRRI), with support from The
Asia Foundation.
Hangzhou, China, February 28-March 2, 2010
Title: System of Rice Intensification
Presented by: Erika Styger
Presented at: Special Exhibit/Event on Rice Production at Agritechnica
Venue and Date: Hannover, Germany November 15, 2013
Presenter: M.C. Diwakar, Director, Directorate of Rice Development, Ministry of Agriculture and Cooperation, Patna
Audience: 2nd National SRI Symposium, Agartala, India
Subject Country: India
Dr. Abha Mishra. Senior Research Specialist-cum-Affiliated Faculty
Agricultural Systems and Engineering
School of Environment Resources and Development. Asian Institute of Technology, Thailand
Author: Norman Uphoff
Title: Opportunities to Raise Agricultural Production with Water-Saving and with Climate-Change Resilience for Diverse Crops and CountriesOpportunities to Raise Agricultural Production with Water-Saving and with Climate-Change Resilience for Diverse Crops and Countries
Presented at: The Brown Bag Lunch with Foreign Agricultural Service, USDA
Date: November 6, 2017
Venue: FAS/USDA, Washington D.C.
Presented by: Norman Uphoff, CIIFAD, Cornell University, USA
Presented at: BioVision Alexandria 2010 New Life Sciences: Future Prospects
Date Presented: 04/15/2010
Title: Insights into Plant-Microbial Symbiosis and Implications for Sustainable Agriculture –Giving Attention to ‘Inner Space’
Date: 26 January 2013
Presented by Norman Uphoff at the National Institute for Agricultural and Forestry Research (IDIAP), Santo Domingo, Domincan Republic
Poster presentation at the 4th International Rice Congress
Authors: Iswandi Anas, Nindya Ayu Utari, Yolla Vivi Sukmasakti, and Rahayu Widyastuti
Title: Ratooning with high yield
Venue: Bangkok International Trade and Exhibition Centre (BITEC), Bangkok, Thailand
Date: October 28-31, 2014
Presenter: Norman Uphoff
Title: Agroecological Strategies for Raising Crop Productivity with Reduced Inputs, with Less Water Requirement, and with Buffering of Climate-Change Stresses
Date: April 10, 2014
Venue: Agricultural Research Center, Sakha, Kafr El-Sheikh, Egypt
Presented by: Norman Uphoff, CIIFAD, Cornell University, USA
Presented at: Panel on Climate Change and Rice Agriculture 3rd International Rice Congress, Hanoi, Vietnam
Presented on: 9 November 2010
Title: Identification of the critical factors of System of Rice Intensification (SRI) for maximizing Boro rice yield in Bangladesh
Presenter: Md. Abu Bakar Siddique Sarker, Principle Scientific Officer, Agronomy Division, Bangladesh Rice Research Institute (BRRI)
Venue: The 17th Australian Agronomy Conference, Wrest Point Convention Centre in Hobart, Tasmania, Australia
Date: September 24, 2015
Authors: Amod K. Thakur and Norman Uphoff
Title: 1707 - Climate Smart agriculture: How modified crop/water management with SRI can contribute to climate-resilience and higher water productivity
Date: October 23-25, 2017
Presented at: 2017 Annual Meetings of ASA-CSSA-SSSA on ‘Managing Global Resources for a Secure Future
Venue: Tampa, Florida, USA
Author: Norman Uphoff
Title: Agroecological Management of Soil Systems for Food, Water, Climate Resilience, and Biodiversity
Date: December 6, 2019
Presented at: The Knowledge Dialogue on the Occasion of World Soil Day
Venue: United Nations, New York
Speaker: Norman Uphoff
Title: Agroecological Opportunities with the System of Rice Intensification (SRI) and the System of Crop Intensification (SCI)
Date: June 25, 2021
Venue: online, presented in the International Webinar Series on Agroecology and Community Series
Title: ‘Differentiated Agronomies’ for Sustainable Rice Intensification : Towards an Alternative Policy Framework for Local Food Security in India
Authors: Ravindra Adusumilli, Debashish Sen, Sabarmatee, C. Shambu Prasad, Rob Schipper, Raj Kumar Kumawat
Presented at: First International Conference on Global Food Security
Venue: Noordwijkerhout, The Netherlands, 29th September to 2nd Oct, 2013
Presenter: Ram Bahadur Khadka
Title: New Directions for the System of Rice Intensification in Nepal: Mechanization and Biofertilizers
Date: December 9, 2016
Venue: Mann 102, Cornell University, Ithaca, NY
Title: Development of integrated rice-azolla-duck-fish farming systems with SRI methods for rice production in the Mekong River region, Vietnam
Presenter: Nghia Nguyen Soil Biology Laboratory, Department of Soil Science, College of Agriculture & Applied Biology, Cantho University, Cantho City, Vietnam
Venue: Cornell University
Date: July 1, 2015
Presenter: Lin Xianqing, CNRRI
Workshop on the System of Rice Intensification, Exchanging Experience in
China, the Democratic People's Republic of Korea and Internationally, organized and
hosted by the China National Rice Research Institute (CNRRI), with support from The
Asia Foundation.
Hangzhou, China, February 28-March 2, 2010
Title: System of Rice Intensification
Presented by: Erika Styger
Presented at: Special Exhibit/Event on Rice Production at Agritechnica
Venue and Date: Hannover, Germany November 15, 2013
Presenter: M.C. Diwakar, Director, Directorate of Rice Development, Ministry of Agriculture and Cooperation, Patna
Audience: 2nd National SRI Symposium, Agartala, India
Subject Country: India
Dr. Abha Mishra. Senior Research Specialist-cum-Affiliated Faculty
Agricultural Systems and Engineering
School of Environment Resources and Development. Asian Institute of Technology, Thailand
Author: Norman Uphoff
Title: Opportunities to Raise Agricultural Production with Water-Saving and with Climate-Change Resilience for Diverse Crops and CountriesOpportunities to Raise Agricultural Production with Water-Saving and with Climate-Change Resilience for Diverse Crops and Countries
Presented at: The Brown Bag Lunch with Foreign Agricultural Service, USDA
Date: November 6, 2017
Venue: FAS/USDA, Washington D.C.
Presented by: Norman Uphoff, CIIFAD, Cornell University, USA
Presented at: BioVision Alexandria 2010 New Life Sciences: Future Prospects
Date Presented: 04/15/2010
Title: Insights into Plant-Microbial Symbiosis and Implications for Sustainable Agriculture –Giving Attention to ‘Inner Space’
Date: 26 January 2013
Presented by Norman Uphoff at the National Institute for Agricultural and Forestry Research (IDIAP), Santo Domingo, Domincan Republic
Poster presentation at the 4th International Rice Congress
Authors: Iswandi Anas, Nindya Ayu Utari, Yolla Vivi Sukmasakti, and Rahayu Widyastuti
Title: Ratooning with high yield
Venue: Bangkok International Trade and Exhibition Centre (BITEC), Bangkok, Thailand
Date: October 28-31, 2014
Presenter: Norman Uphoff
Title: Agroecological Strategies for Raising Crop Productivity with Reduced Inputs, with Less Water Requirement, and with Buffering of Climate-Change Stresses
Date: April 10, 2014
Venue: Agricultural Research Center, Sakha, Kafr El-Sheikh, Egypt
Presented by: Norman Uphoff, CIIFAD, Cornell University, USA
Presented at: Panel on Climate Change and Rice Agriculture 3rd International Rice Congress, Hanoi, Vietnam
Presented on: 9 November 2010
Title: Identification of the critical factors of System of Rice Intensification (SRI) for maximizing Boro rice yield in Bangladesh
Presenter: Md. Abu Bakar Siddique Sarker, Principle Scientific Officer, Agronomy Division, Bangladesh Rice Research Institute (BRRI)
Venue: The 17th Australian Agronomy Conference, Wrest Point Convention Centre in Hobart, Tasmania, Australia
Date: September 24, 2015
Authors: Amod K. Thakur and Norman Uphoff
Title: 1707 - Climate Smart agriculture: How modified crop/water management with SRI can contribute to climate-resilience and higher water productivity
Date: October 23-25, 2017
Presented at: 2017 Annual Meetings of ASA-CSSA-SSSA on ‘Managing Global Resources for a Secure Future
Venue: Tampa, Florida, USA
Author: Norman Uphoff
Title: Agroecological Management of Soil Systems for Food, Water, Climate Resilience, and Biodiversity
Date: December 6, 2019
Presented at: The Knowledge Dialogue on the Occasion of World Soil Day
Venue: United Nations, New York
Author: Norman Uphoff
Title: Improving Food Production for Health in a Water-Constrained World: Opportunities from Agroecological Knowledge and Experience (SRI)
Presented at: Water for Health Lecture Series, Nebraska Water Center
Date: February 24, 2016
Effect of crop establishment/irrigation techniques and nitrogen levels on gro...Innspub Net
A field experiment was conducted during 2010 and 2011, under three replications. One row in Furrow Irrigated Raised Bed/ every furrow irrigation increased plant height by 7.94 %, stem girth by 46.47 per cent, and dry matter at maturity by 23.69 % over conventional sowing/ conventional irrigation. Similarly, number of leaves increased by 19.26 and 24.65 % leaf area by 25.83 and 26.65 %, over conventional practice at 60 and 90 days after sowing, respectively. Besides, it resulted 1.91 and 1.82 % higher total chlorophyll over conventional practice at 30 and 60 days after sowing, respectively and increased grain by 60.72 %, biological 42.44 % and stover yield by 30.2 % over conventional practice and also resulted 3.43 higher starch and 12.05 % protein content over conventional practice. One row in FIRB/ every furrow irrigation, had 62.1, 51.5 and 42.9 % higher uptake for nitrogen, phosphorus and potassium over conventional practice of crop establishment, respectively. Get more articles: http://goo.gl/FAvGnB
Speaker: Norman Uphoff, SRI-Rice Advisor and Emeritus Professor of Government and International Agriculture
Date: January 31, 2018
Event: International Programs/CALS Seminar Series, Cornell University
Venue: 135 Emerson Hall, Cornell University, Ithaca, NY
Contributers: Norman Uphoff, CIIFAD, Cornell University, USA
Iswandi Anas, Biotechnology Lab, IPB, Indonesia
O.P. Rupela, former Principal Scientist, ICRISAT, India
A.K. Thakur, Directorate of Water Management, India
T.M. Thiyagarajan, Tamil Nadu Agric. Univ., India
Presented at: Conference of Association of Applied Biologists on Positive Plant-Microbial Interactions
ORW Omprakash is a good person and a loyalasifaslam76778
agronomy is a branch of mathematics which deals with om prakash and om prakash deals with entomology and entomology is a branch politics hence proved we need we are eligible to download this ppt
Presented by: Norman Uphoff, CIIFAD, Cornell University, USA
Presented at: ECHO Conference on Asian Agriculture Chiangmai, Thailand
Presented on: September 21, 2009
Geographical Analysis of the Challenges and Opportunities Facing Jharkhand's ...AI Publications
India is a land of rivers having prevalently a farming-based economy. Agriculture is the fundamental supporter of most of the general population in India and water is the most significant contribution to crop generation. The accomplishment of agriculture relies on the sufficiency and timely event of precipitation. Yet, the precipitation in India is frequently meagre, uneven and there is indeed, even all out disappointment in certain districts and during certain periods. Downpour is bound to a couple of months in a year and it shifts from year to year and district to-area which makes enormous pieces of the nation defenceless against drought. In this manner, natural distribution of water is lacking both spatially and transiently. Aside from the distinction in money saving advantage of good irrigation in various mouzas and diverse irrigation systems, the spatial example is likewise uneven at small scale level for example one irrigation framework to another irrigation framework. The Z-Score an incentive if there should be an occurrence of Co-employable RLI (+1.80) scored most astounding which shows the greatest net benefit for boro development. The most minimal score which is seen in the STW (leased) (- 1.42) poor inundated zone shows minimal benefit for boor development.
Assessment of Growth and Yield Performance of Twelve Different Rice Varieties...AI Publications
The present investigation entitled “Assessment of growth and yield performance of twelve different rice varieties under north Konkan coastal zone of Maharashtra” was carried out during the kharif season of the year 2021 and 2022 on the field of ASPEE, Agricultural Research and Development Foundation, Tansa Farm, At Nare, Taluka Wada, District Palghar, Maharashtra, India. The experiment was laid out in Randomized Block Design (RBD). The twelve varieties namely Zini, Jaya, Dandi, Rahghudya, Govindbhog, Dangi, Gurjari, VNR-7, VNR-8, VNR-9, Karjat-3, and Karjat-5 were replicated thrice. The plant height (cm), number of tillers per plant, number of panicles per plant, number of panicles (m²), and length of panicle (cm) were noted to the maximum with cv. “VNR-7”. The highest number of seeds per panicle, test weight (gm), grain yield (q/ha), and straw yield (q/ha) were recorded with the cv. “VNR-7”. While the lowest number of days to 50% flowering was also recorded with cv. “VNR-7” during the year 2021 and 2022.
Authors: Febri Doni and Rizky Riscahya Pratama Syamsuri
Title: System of Rice Intensification in Indonesia: Research adoption and Opportunities
Presented at: The International Conference on System of Crop Intensification (SCI) for Climate-Smart Livelihood and Nutritional Security
Date: December 12-14, 2022
Venue: ICAR, Hyderabad, India
Author: Bancy Mati
Title: Improving Rice Production and Saving Water in Africa
Presented at: The International Conference on System of Crop Intensification for Climate-Smart Livelihood and Nutritional Security (ICSCI22)
Date: December 12-14 2022
Venue: ICAR, Hyderabad, India
Author: Lucy Fisher
Title: Overview of the System of Rice Intensification SRI Around the World
Presented at: The International Conference on The System of Crop Intensification (ICSCI22)
Date: December 12, 2022
Author: Khidhir Abbas Hameed
Title: Estimated Water Savings, Yield and Income Benefits from Using SRI Methods in Iraq
Event: International Conference on System of Crop Intensification (ICSCI2022)
Date: December 12-14, 2022
(Partial slideset related to the System of Rice Intensification (SRI)
Presentation at COP26, Glasgow, Scotland
Date: November 2021
Presentation by: Ministereo Desarrollo Agropecuario, Panama
This is a presentation about the SRI activities of the LINKS program, Catalysing Economic Growth for Northern Nigeria, which is implemented by Tetra Tech International Development
Author: Tetra Tech International Development
Title: Reduced Methane Emissions Rice Production Project in Northern Nigerian with System of Rice Intensification (SRI)
Date: October 25, 2021
Author: Reinaldo Cardona
Instituto de Investigaciones Agrícolas del estado Portuguesa: UNEFA-Núcleo Portuguesa Universidad Nacional Experimental Politécnica de la Fuerza Armada
Date: 2017
Title: Sistema Intensivo del Cultivo del Arroz para la Producción y Sustentabilidad del Rubro
Speaker: Khidhir Abbas Hameed,
Al Mishkhab Rice Research Station
Title: System of Rice Intensification SRI
Date: December 9, 2020
Organizer: Central and West Asian Rice Center (CWA Rice)
Venue: online
Author/Presenter: Karla Cordero Lara
Title: Towards a More Sustainable Rice Crop: System of Rice Intensification (SRI) Experience in Chilean Temperate Japonica Rice
Date: November 29-30, 2018
Presented at: The Third International Symposium on Rice Science in Global Health
Venue: Kyoto, Japan
Title: Proyecto IICA - MIDA/ Sistema Intensivo de Arroz (SRI) Evaluación del primer ensayo de validación realizado en coclé para enfrentar al Cambio Climático (alternativa) Localizada en el Sistema de Riego El Caño. Diciembre /2018 - Abril/ 2019 - Octubre/ 2019
Title: Smallholder Rice Production Practice and Equipment: What about the Women?
Presenter: Lucy Fisher
Venue: 2nd Global Sustainable Rice Conference and Exhibition
United Nations Conference Centre, Bangkok Thailand
Date: October 2, 2019
Author: Pascal Gbenou
Title: Rice cultivation in Africa: How traditional practices relate to modern opportunities
Date: June 26-29, 2019
Presented at: The International Rice Development Conference and Seminar on China-Africa Development
Location: Changsha, China
Authors: Christopher B. Barrett, Asad Islam, Abdul Malek, Deb Pakrashi, Ummul Ruthbah
Title: The Effects of Exposure Intensity on Technology Adoption and Gains: Experimental Evidence from Bangladesh on the System of Rice Intensification
Date: July 21, 2019
Presented at: USDA Multi-state Research Project NC-1034 annual research conference on
The Economics of Agricultural Technology & Innovation
Location: Atlanta, GA
Author: Bancy Mati
Title: Improving Productivity of Rice under Water Scarcity in Africa: The Case for the System of Rice Intensification
Date: June 26-29, 2019
Presented at: The International Rice Development Conference and Seminar on China-Africa Development
Location: Changsha, China
Author: Miguel Aguero
Title: SRI en Venezuela - Resena Historica de la Parcela 234
Venue: Online (webinar): Sistema Intensivo de Cultivo de Arroz (SRI) - Experiencia Venezuela
Date: February 15, 2019
Organized by: Inter-American Institute for Cooperation on Agriculture (IICA)
More from SRI-Rice, Dept. of Global Development, CALS, Cornell University (20)
1905 - SRI en Venezuela - Resena Historica de la Parcela 234
1049 SRI Findings in India
1. Dr. Amod K. Thakur
Directorate of Water Management (ICAR)
Bhubaneswar, Orissa, INDIA
SRI Findings in India
Pre-Congress ‘SRI DAY’
November 8, 2010
2. Objectives
Varietal performance
Impact of spacing
Effect of different N-level
Effect of water management practices
Comparative performance
4. • All the varieties performed better under SRI management than
with conventional transplanted management.
• SRI showed 36-49% higher yield than TP
• Short duration variety (Khandagiri): 36%,
• Medium duration and hybrid varieties: 42-45 %,
• Long duration: 49% more yield than TP
SRI: Panicle length, grains per spike, and grain-ripening percent
were the major factors responsible for higher yield than TP
Salient Findings
A. K. Thakur, Sreelata Rath and Ashwani Kumar (2010). Archives of Agronomy and Soil
Science ((Taylor & Francis),
DirectorateofWaterManagement,BhubaneswarDirectorateofWaterManagement,Bhubaneswar
5. Effect of spacing
Grain Yield (t/ha) under different spacings in SRI and TP
Khandagiri Surendra Savitri
Treatment Yield
(t/ha)
% Change
in yield
Yield
(t/ha)
% Change
in yield
Yield
(t/ha)
% Change
in yield
30 x 30cm 2.97c -1.65 2.94d -33.48 3.86d -19.79
25 x 25cm 3.42b 13.12 4.26bc -3.58 6.31a 31.16
20 x 20cm 4.44a 46.80 6.27a 41.89 6.06a 26.03
15 x 15cm 3.01c -0.39 4.21bc -4.71 4.40c -8.53
10 x 10cm 2.88c -4.80 4.16c -5.84 4.23c -12.10
TP (15x10 cm) 3.02c - 4.42b - 4.81b -
Thakur, A. K.., S. K. Choudhari, R. Singh, and Ashwani Kumar. (2009). The Indian Journal of Agricultural
Sciences 79 (6):443-447.
DirectorateofWaterManagement,BhubaneswarDirectorateofWaterManagement,Bhubaneswar
6. Optimum spacing:
For short and medium duration varieties with
SRI -- 20 cm x 20 cm
For long duration varieties -- 25 cm x 25 cm
Salient Findings
DirectorateofWaterManagement,BhubaneswarDirectorateofWaterManagement,Bhubaneswar
At wider spacing (more than 20 cm x 20 cm):
Yield was reduced due to lesser panicle number/m2
At closer spacing (less than 20 cm x 20 cm) :
Yield was reduced due to shorter panicles
7. • Performance of individual hills was significantly
improved with wider spacing compared to closer-spaced
hills.
• In these trials, both SRI and TP gave their highest grain
yield with spacing of 20x20 cm. However, SRI yielded
40% more than the recommended practice. Lowest yield
was recorded at 30x30 cm spacing under both practices,
due to less plant population (11/m2
) despite improved hill
performance.
• Wide spacing beyond optimum plant density does not
give higher grain yield on an area basis, and for
achieving this, a combination of improved hills with
optimum plant population must be worked out for SRI.
A. K. Thakur, S. Rath, S. Roychowdhury & N. Uphoff (2010). Journal of Agronomy & Crop
Science (Blackwell Verlag GmbH), 196:146–159.
DirectorateofWaterManagement,BhubaneswarDirectorateofWaterManagement,Bhubaneswar
Salient Findings
8. Effect of different N-levels
The effects of different N application rates (0, 60, 90 and 120 kg/ha) were
assessed with the different cultivation systems (SRI and TP).
DirectorateofWaterManagement,BhubaneswarDirectorateofWaterManagement,Bhubaneswar
Overall, grain yield with SRI practices was 49%
N uptake, N use-efficiency, and partial factor productivity from
applied N were all higher in SRI, which can be attributed to the
greater root development under SRI.
With SRI and TP management, one kg N produced 64 and 43 kg
of rice grain, respectively.
Higher N and chlorophyll content, reflecting delayed
senescence, contributed to an extension of photosynthetic
processes, which translated into increased grain yield under SRI.
A.K. Thakur et al. (2010) Journal of Plant Nutrition and Soil Science (under review)
9. Effect of different water levels
DirectorateofWaterManagement,BhubaneswarDirectorateofWaterManagement,Bhubaneswar
Highest grain yield at 1 DAD under both cultivation methods. As more
water stress was imposed, the grain yield reduced in both methods, but
the reduction in grain yield was found greater in conventional TP than
SRI. This might be due to deeper and greater root growth under SRI,
which enables the plant to extract water from deeper soil zone.
0
1
2
3
4
5
6
7
CF 1
DAD
3
DAD
5
DAD
7-
DAD
CF 1
DAD
3
DAD
5
DAD
7
DAD
TP SRI
Grainyield(t/ha)
-50
-40
-30
-20
-10
0
10
20
CF
1
DAD
3
DAD
5
DAD
7-
DAD
CF
1
DAD
3
DAD
5
DAD
7
DAD
TP SRI
%changeoverCF
10. Comparison
SRI vs. TP
Thakur, A.K., N. Uphoff, and E. Antony. (2010). Experimental Agriculture
(Cambridge University Press) 46 (1): 77–98.
DirectorateofWaterManagement,BhubaneswarDirectorateofWaterManagement,Bhubaneswar
11. Root Growth & activity
Tillering under SRI
DirectorateofWaterManagement,BhubaneswarDirectorateofWaterManagement,Bhubaneswar
Leaf development
Canopy structure & Light
Interception
12. Physiological Observations
• SRI had higher chlorophyll content,
maximum quantum yield of PS II (Fv/Fm)
and actual quantum yield (Φ PS-II)
• Higher photosynthetic rate
• Increasing crop growth rate (CGR)
DirectorateofWaterManagement,BhubaneswarDirectorateofWaterManagement,Bhubaneswar
13. Yield and yield contributing characters
SRI rice crop had:
• More number of longer panicles,
• More number of grains in spike,
• Higher 1000-grain weight, and
• More grain-ripening percent
These were responsible for higher grain yield.
DirectorateofWaterManagement,BhubaneswarDirectorateofWaterManagement,Bhubaneswar
14. Rice plant (cv. Ciherang) grown from a single seed
using methods of the System of Rice Intensification
(SRI), in E. Java, Indonesia. Presented by farmers
to N. Uphoff, 6 Oct 2009. The plant produced 223
fertile tillers, which means that it had reached into
the 14th phyllochron of grpwth
Future research needs
Reason for phenotypic alterations/tillering in SRI plants
(physiological, biochemical, hormonal and genetic changes
in plants responsible for this alteration)
Study grain-filling and source-sink relationships in rice
grown through SRI methods
Effects of different components of SRI practice on plant
growth and physiology
DirectorateofWaterManagement,BhubaneswarDirectorateofWaterManagement,Bhubaneswar
15. Roots are the key to a second green
revolution
(Virginia Gewin (2010) An underground revolution. Nature, 466, 29 July 2010)
Changes in soil-root environment that occurs in SRI due to
aerobic/semi-aerobic field conditions and the use of a mechanical
weeder needs to be addressed for future research.
There is also a need to conduct study on nutrient uptake, its
budgeting in SRI, and long-term effects on nutrient status of SRI
field.
Initial findings have indicated that SRI is drought-tolerant, so
proper experiments are required to assess this observation.
Root traits that are linked to shoot growth and dry matter
production should be investigated systematically to understand
better how the plasticity of roots could enhance grain yield within
their dynamic soil environment.
DirectorateofWaterManagement,BhubaneswarDirectorateofWaterManagement,Bhubaneswar
16. Dr. Amod K. Thakur
amod_wtcer@yahoo.com
SRI Research: Still has a long way to go…
DirectorateofWaterManagement,BhubaneswarDirectorateofWaterManagement,Bhubaneswar