Corn farming technology for the upland areas developed by seed company Monsanto Philippines called ”Tipid Sak” now allows farmers to plant corn even in highly elevated areas with minimum, if not zero tillage, a biotechnology group said in a press release. Rosalie Ellasus, president of the Philippine Maize Federation, Inc., said farmers in Sara, Iloilo are using crops like the genetically engineered herbicide-tolerant Roundup Ready corn appropriate for upland areas.