SEVEN years ago, potato farmers in the city of Batu, East Java, were almost destitute. It seemed as if all their hard work had been in vain. They almost never enjoyed their potato harvests because their proceeds often did not even cover their costs. This situation really bothered Tatik Wardiyati. This lecturer from the Agricultural Faculty of Brawijaya University, Malang, East Java, was moved to investigate the reasons for all this. She eventuall