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1815 - Validating and Contextualizing SRI in Latin America and the Caribbean

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Authors: Diddier Moreira (presenter) and Kelly Witkowski
Title: Validating and Contextualizing SRI in Latin America and the Caribbean
Presented at: The 5th International Rice Congress
Venue: Sands Expo and Convention Centre, Singapore
Date: October 15, 2018

Published in: Environment
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1815 - Validating and Contextualizing SRI in Latin America and the Caribbean

  1. 1. Advances toward sustainable, productive, profitable and climate-smart rice production systems in Latin America and the Caribbean Díddier Moreira 15 Oct 2018 With data and input from Kelly Witkowski (IICA), Gabriel Garcés (FEDEARROZ, Colombia), Karla Validating and Contextualizing SRI
  2. 2. Context Validate and document SRI Adapt machinery Increase knowledge and skills SRI??
  3. 3. Photos: Juan Arthur Dominican Republic 0w 2w 6w 10w 14w
  4. 4. Transplanting
  5. 5. Mechanized weeders
  6. 6. Results SRI vs. conventional: Dom. Rep. Seeds -84-95% Water - 28-45% Yields 2-17% Income 2-17% Labor cost - 20-30% Input costs - 19-23% Utilities 41-102%
  7. 7. Results SRI vs. conventional: Colombia Seeds - 79-93% Water - 0-13% Yield 12% Income 25% Labor cost - 27% Input costs - 18% Utilities 84%
  8. 8. Results SRI vs. conventional: Venezuela Planting method Tillers (units) Stem thickness (mm) Panicles (units) Height (cm) Yield (Kg/ha) Pre- germinated broadcast 4,77 4,49 4,23 80,20 4 277,50 Direct seeding 5,83 5,14 5,03 81,38 5 223,38 SRI 25,60 6,28 21,63 96,55 8 170,34 SRI INIA 30,40 6,37 26,71 99,93 11 393,72
  9. 9. • Improves rice plant phenotypes • more, taller tillers; • longer, heavier roots; • more spikes • Increases productivity • Increases profitability • Reduces water use (15-25%) • Decreases seeds (80-90%), • Reduces agrochemical use Conclusions to date SRI vs. conventional, both 124 days Calabozo, Guarico, Venezuela Photo: Miguel Aguero
  10. 10. Lodging after storm, conventional vs SRI, Tolima, Ibagué, Colombia Photo: Gabriel Garcés • Climate-smart innovation • Requires continual learning + adjustments • Collaboration among producers, researchers, and technicians. Conclusions to date
  11. 11. Challenges and Next Steps • Increased research in field stations combined with scaled trials in farmers fields – Experiment to identify complete “ideal” SRI for each agro-ecological context • Continue mechanization process; adjustments and direct seeding • Calculate water use efficiency • Incorporate organic nutritional plan • Use modeling tools to identify potential adaptation contribution under future climate scenarios
  12. 12. Thank you! ¡Gracias! Second regional SRI workshop, Colombia 2017

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