ISBN: 970-648-123-0 Roberta V. Gerpacio Jocelyn D. Labios Romeo V. Labios Emma I. Diangkinay Apdo. Postal 6-641, 06600 Mexico, D.F., Mexico www.cimmyt.org Maize in the Philippines: Production Systems, Constraints, and Research Priorities Roberta V. Gerpacio1 Jocelyn D. Labios2 Romeo V. Labios3 Emma I. Diangkinay4 1 Agricultural Economist, CIMMYT-Philippines Office, IRRI, Los Baños, Laguna, Philippines (
[email protected]); 2 Soil Science Specialist, Agricultural Systems Cluster (formerly Farming Systems and Soil Resources Institute), College of Agriculture, University of the Philippines Los Baños, Philippines (
[email protected]); 3 Farming Systems Agronomist, ASC, CA, University of the Philippines Los Baños, Philippines (
[email protected];
[email protected]); 4 Project Research Assistant, CIMMYT-Philippines (
[email protected]). CIMMYT® (www.cimmyt.org) is an inter nationally funded, not-for-profit organization that conducts research and training related to maize and wheat throughout the developing world. Drawing on strong science and effective partnerships, CIMMYT works to create, share, and use knowledge and technology to increase food security, improve the productivity and profitability of farming systems, and sustain natural resources. Financial support for CIMMYT’s work comes from many sources, including the members of the Consultative Group on International Agricultural Research (CGIAR) (www.cgiar.org), national governments, foundations, development banks, and other public and private agencies. © International Maize and Wheat Improvement Center (CIMMYT) 2004. All rights reserved. The designations employed in the presentation of materials in this publication do not imply the expr ession of any opinion whatsoever on the part of CIMMYT or its contributory organizations concerning the legal status of any country, territory, city, or area, or of its authorities, or concerning the delimitation of its frontiers or boundaries.