The System of Rice Intensification
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    Basic SRI methods include:

  • Carefully transplant single seedlings at two-leaf stage (8-12 days)
  • Plant seedlings at a distance of 25 cm or more in a square pattern
  • Keep soil moist and aerated. Fertilize with compost - add chemical fertilizer only if needed
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Welcome to SRI-Rice Online!

SRI-Rice ONLINE and its associated social networking sites are maintained by the SRI International Network and Resources Center (SRI-Rice) at Cornell University. SRI-Rice ONLINE contains the most comprehensive collection of information on the System of Rice Intensification globally. Many of the documents come directly from our partners: Farmers, researchers, NGOs, govt. agencies and other stakeholders.

What is SRI?

The System of Rice Intensification, known as SRI -- le Système de Riziculture Intensive in French and la Sistema Intensivo de Cultivo Arrocero (SICA) in Spanish -- is an agro-ecological methodology for increasing the productivity of irrigated rice by changing the management of plants, soil, water and nutrients. SRI originated in Madagascar in the 1980s and is based on the cropping principles of significantly reducing plant population, improving soil conditions and irrigation methods for root and plant development, and improving plant establishment methods. [more..]

Benefits of SRI

The benefits of SRI have been demonstrated in over 60 countries (see map.) They include: 20%-100% or more increased yields, up to a 90% reduction in required seed, and up to 50% water savings. SRI principles and practices have been adapted for rainfed rice as well as for other crops (such as wheat, sugarcane and tef, among others), with yield increases and associated economic benefits.





May

• Feb.-May NEWSLETTER NEW
• 2023 News / New resources
• SRI Research Database

Project Drawdown Solutions - SRI

System of Rice Intensification (SRI): Memoires of an Innovation, by Norman Uphoff

Strategies for survival, Nature Plants 3: 907

Check out our new partner SRI-2030's website and video

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• See Favorite SRI Videos --also see French language videos

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Support for the SRI International Network and Resources Center (SRI-Rice) and it Online Resources Provided by
Carolyn McKay and Marguerite and Norman Uphoff, with previous support from
Jim Carrey's Better U Foundation
, the Ohrstrom Foundation, and the Bridging Peace Fund
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