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 grain yield advisory image below or button above. Feedbacks to improve the prototype and/or establish collaboration are welcome.