R. Maghirang, et al. 289 ISSN 0115 HOW SUSTAINABLE IS ORGANIC AGRICULTURE IN THE PHILIPPINES? Rodel G. Maghirang1, Reynaldo De La Cruz2 and Reynaldo L. Villareal3 1University Researcher, University of the Philippines at Los Banos (UPLB), 2Retired-Professor, UPLB and 3 Corresponding Member, National Academy of Science and Technology and Adjunct Professor,