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Decision Support System for Rainfed Rice Production

WeRise (Weather-rice-nutrient integrated decision support system)

Rainfed rice yields are low and unstable mainly because of uncertainty in rainfall amount and distribution, existence of nutrient stress, and pest occurrence. Climate change poses the grave threat of extreme weather events that could further reduce rice productivity in rainfed areas.

The IRRI-Japan project on Climate Change Adaptation in Rainfed Rice Areas (CCARA) is developing a decision support system (WeRise) to improve the livelihood of rainfed rice farmers under current and future climate scenarios. This system uses a seasonal-weather forecast that provides farmers crucial weather information such as the start and end of the rainy season and rainfall distribution during the crop growing season. It also advises farmers when to sow and transplant the crop, what variety is appropriate, and how fertilizer may be efficiently applied.

Field tests on the WeRise prototype are going on in Indonesia and Lao PDR. The prototype for other countries may also be explored. To run the prototype, please click on the weather advisory or crop advisory image below or button above. Feedbacks to improve the prototype and/or establish collaboration are welcome.

Weather Advisory
Crop Advisory

IRRI-Japan Collaborative Research Project

The IRRI-Japan Collaborative Research Projects have been funded by the government of Japan through the Ministry of Agriculture, Forestry, and Fisheries (MAFF) since 1984. CCARA, which is the latest project, was launched in August 2010 and will end in September 2015.