ORGANIC AGRICULTURE TECHNOLOGIES AND SYSTEMS DEVELOPED AND ADAPTED BY FARMERS IN THE PHILIPPINES Oscar B. Zamora Blesilda M. Calub with assistance from Karen Joy D. Lopez Anacorita Oliquino-Abasolo Rubiriza D.C. Resuello Anna Gale C. Vallez Published by: Department of Agriculture-Bureau of Agricultural Research (DA-BAR) and University of the Philippines Los Baños- College of Agriculture (UPLB-CA)