0430 System of Rice Intensification (SRI)

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SRI-Rice, Dept. of Global Development, CALS, Cornell University

Presenter: A. Satyanarayana Audience: Workshop on SRI, World Rice Research Conference, Tsukuba, Japan Subject Country: India

System of Rice Intensification (SRI) An innovative technology to produce ‘more crop per drop’ Slides from a powerpoint presentation made to the workshop on SRI held at World Rice Research Conference, Tsukuba, Japan, November 7, 2004 Dr. A. SATYANARAYANA Director of Extension, Andhra Pradesh Acharya N. G. Ranga Agricultural University Rajendranagar, Hyderabad, India

On-farm evaluations of SRI in A.P. ANGRAU DOA Kharif 2003-04 200 500 Rabi 2003-04 > 2000 Volunteer farmers with larger areas Kharif 2004-05 250 800 Rabi 2004-05 250 + Thousands of volunteer farmers

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PADDY YIELDS UNDER SRI IN COASTAL AREAS Kharif 2003-04, by district (kg/ha)

PADDY YIELDS UNDER SRI IN TELANGANA AREA Kharif 2003-04, by district (kg/ha)

PADDY YIELDS UNDER SRI IN RAYALASEEMA REGION Kharif 2003-04, by district (kg/ha)

Performance of SRI in AP, Kharif season 2004 (ANGRAU) No. of trials 194 SRI 7.6 t/ha Conventional 5.9 t/ha SRI advantage = 1.7 t/ha

PADDY YIELDS UNDER SRI IN KHARIF 2004-05 ANGRAU trials, by district (kg/ha)

Performance of SRI in Kharif 2003-04 Trials organized by State DOA No. of trials - 476 Average SRI yield (t/ha) - 7.92 Control (t/ha) - 5.48 State average productivity (t/ha) - 3.01 2 districts averaged over 10 t/ha 6 districts averaged over 9 t/ha

Performance of Rice under SRI, Rabi 2003-04 No. of trials (data reported so far) 94 Ave. SRI yield (kg/ha) 9,669 Ave. conventional yield (kg/ha) 7,125 SRI yield advantage (kg/ha) 2,554 Highest yield recorded under SRI (kg/ha) 16,250 (harvested yield from 9 acre extent – see picture)

Benefits of SRI 1. Higher yields – Both grain and straw 2. Reduced duration (by 10 days) 3. Lesser chemical inputs 4. Less water requirement 5. Less chaffy grain % 6. Grain weight increased without change in grain size 7. Higher head rice recovery 8. Withstand cyclonic gales 9. Cold tolerance 10. Soil health improves through biological activity 11. Drought tolerance

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1. The System of Rice Intensification (SRI) is a resource-saving, high-yielding rice farming method that can meet the needs of increased land and water productivity, accessibility for poor farmers, environmental friendliness, pest and drought resistance, and profitability for farmers. 2. SRI practices such as young seedlings, wider spacing, and intermittent flooding have been shown to increase yields by 50-100% with 25-50% less water and 10-20% lower costs of production compared to conventional methods across multiple countries. 3. SRI also provides benefits like reduced methane emissions, greater pest and disease resistance, stronger resistance to stresses like lodging and drought, and improved grain quality.

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This document outlines research on the System of Rice Intensification (SRI) in Nepal. SRI is a method that promotes more productive rice plants through changes in plant, soil, water and nutrient management. Research in Nepal has found SRI can increase yields per unit of water, seed and fertilizer used. Institutions in Nepal have been conducting research on SRI since 1998, evaluating factors like varietal selection, spacing, age of seedlings and water management. Studies have found SRI can increase yields over conventional methods by 28-50%, using fewer inputs. Ongoing research focuses include water budgeting, heavy metals, soil microbiology, greenhouse gases and mechanization. Further research and collaboration between institutions is needed to

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The document discusses the System of Rice Intensification (SRI) method, an alternative for increasing rice cultivation and productivity in Nepal. It provides a brief history of SRI trials in Nepal starting in 1999, which saw more successful results from 2001 onward. It describes the key aspects of the SRI method used in Nepal, including young seedlings, single seedling transplanting in wider spacing, soil moisture management, and weeding. The document argues that SRI is beneficial for Nepal for reasons such as rice being the staple food, low rice productivity, and challenges around input prices and water scarcity. SRI can increase yields, reduce inputs and costs, and help address food security and poverty issues. Challenges

The document provides an overview of the System of Rice Intensification (SRI) and its practices for increasing rice yields. It describes the six key elements of SRI - planting young seedlings singly and widely spaced, intermittent irrigation, increased soil aeration, and the use of organic fertilizers and weed management. Farmers can modify these practices based on their local soil, water, and resource conditions. The document concludes that SRI has the potential to help address issues of climate change, population growth, and better water management.

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This document summarizes research on using SRI (System of Rice Intensification) methods and other water saving techniques to increase rice yields and water use efficiency in Sichuan, China. Key points include: - SRI methods increased average rice yields in Sichuan by 20-55% and reduced water use by 25.6% compared to conventional practices. - Improved SRI techniques for Sichuan include using tray nurseries, transplanting younger seedlings in oblong patterns with triangles, applying herbicides, and using shallow furrows with alternate wetting and drying for water management. - Adoption of SRI and other water saving methods like dry seedbed nurseries and mul

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The document summarizes findings from a study on rice farming systems in Nepal. It found that the System of Rice Intensification (SRI) method produced higher yields than conventional methods. Key factors for SRI's higher yield were using younger seedlings, fewer seedlings per hill, wider spacing, and intermittent flooding irrigation. However, SRI adoption remains limited due to factors such as labor availability, irrigation access, and distance to fields. Farmers adapt their rice farming practices based on their local resources and conditions.

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Ram Bahadur Khadka presented research on the System of Rice Intensification (SRI) method at a 2012 agricultural convention in Nepal. Experiments showed that younger (8-day old) seedlings planted at 25cm x 25cm spacing yielded the highest production and economic returns. The research concluded that SRI techniques can maximize rice production and contribute to national food security when adopted by small-holding farmers in Nepal. The national agricultural research system was encouraged to further test and adapt SRI to more of Nepal's climate regions.

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This document discusses engineering inputs for the System of Rice Intensification (SRI). It provides information on the spread of SRI knowledge and use from 1999 to 2013 across multiple countries in Asia, Africa, and South America. The key components of SRI are described as soil fertility management using FYM, transplanting young seedlings in a wide spacing of 25x25 cm, regular weeding, and keeping the soil wet without flooding. The document also describes the development and testing of gender-friendly rice weeders and markers to help improve the efficiency and ergonomics of SRI practices.

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NIRMAN promotes more sustainable sugarcane cultivation practices through their Sustainable Sugarcane Initiative (SSI). SSI aims to improve smallholder farmers' livelihoods by increasing productivity while minimizing water usage and environmental impacts. Key practices include using fewer seedlings from nurseries, wider spacing, organic nutrient management, and intercropping. Farmers adopting SSI have experienced higher yields, reduced costs, and additional incomes from intercrops compared to traditional methods. However, issues remain around timely payments from mills and greater promotion of SSI is needed for wider adoption.

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