©Chris Stowers/Panos Pictures..PHILIPPINES Laguna, Luzon 2003..Woman winnowing left-over rice stalks so as not to waste any precious grains after harvesting in the lowland rice paddies on the edge of Laguna de Bay. Farmers find they can double and sometimes triple-crop in a year using IRRI (International Rice Research Centre) developed hybrid rices such as these, whereas in the higher altitude regions only a single crop can be produced each year from traditional varieties.