Abstract. Uruguay is the most export-oriented rice producing country in the world. The annual production rounds 1.4 million metric tons (TMT), more than 96% of which is exported globally. This article shows the results of the cost-benefit analysis performed on different technology alternatives defined for six different locations in the East of Uruguay, which is the in the traditional rice-producing region. Uruguay plants annually about 170 thousand hectares of rice. Sixty-percent of this area is located in the East part of the country. With the objective of defining the best-improved alternative for each of the six locations, an experiment was run for three consecutive years starting with 18 alternatives, three per location.