Rice is one of the most water-intensive crops to grow, needing about 2,500 liters per kilogram, but this is mainly to prevent weeds. SRI is a trending technique that could cut down the water used by over 50%. – WTF Fun Facts
Source: https://www.npr.org/sections/thesalt/2019/01/30/689685891/nepalese-rice-farmers-boost-yields-by-sowing-fewer-plants-and-cutting-water?t=1580162138374