Cropping system diversification for food production in Mindanao rubber plantations: A rice cultivar mixture and rice intercropped with mungbean

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1 University of Southern Mindanao, Cotabato, Philippines
2 Department of Plant Pathology, Kansas State University, Manhattan, Kansas, United States
3 Department of Statistics, Kansas State University, Manhattan, Kansas, United States
4 International Rice Research Institute, Los Banos, Philippines
5 Plant Pathology Department, Oregon State University, Corvallis, Oregon, United States
6 Genetics and Biotechnology Division, International Rice Research Institute, Los Banos, Philippines
7 Institute for Sustainable Food Systems, University of Florida, Gainesville, United States
8 Plant Pathology Department, University of Florida, Gainesville, United States
9 Emerging Pathogens Institute, University of Florida, Gainesville, United States
DOI
10.7287/peerj.preprints.2505v1
Published
Accepted
Subject Areas
Agricultural Science, Biodiversity, Ecology, Plant Science
Keywords
agricultural diversification, intercropping, rubber plantations, Hevea brasiliensis, agroforestry, cultivar mixtures, rice, Mindanao
Copyright
© 2016 Hondrade et al.
Licence
This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, reproduction and adaptation in any medium and for any purpose provided that it is properly attributed. For attribution, the original author(s), title, publication source (PeerJ Preprints) and either DOI or URL of the article must be cited.
Cite this article
Hondrade RF, Hondrade E, Zheng L, Elazegui F, Duque J, Mundt CC, Vera Cruz CM, Garrett KA. 2016. Cropping system diversification for food production in Mindanao rubber plantations: A rice cultivar mixture and rice intercropped with mungbean. PeerJ Preprints 4:e2505v1

Abstract

Including food production in non-food systems, such as rubber plantations and biofuel or bioenergy crops, may contribute to household food security. We evaluated the potential for use of rice, mungbean, rice cultivar mixtures, and rice intercropped with mungbean in experiments planted in young rubber plantations in the Arakan Valley of Mindanao. Rice mixtures consisted of two- or three-row strips of cultivar Dinorado, a cultivar with higher value but lower yield, and high-yielding cultivar UPL Ri-5. Rice and mungbean intercropping treatments consisted of different combinations of two- or three-row strips of rice and mungbean. We used generalized linear mixed models to evaluate the yield of each crop alone and in the mixture or intercropping treatments, as well as a land equivalent ratio for yield, and weed biomass, the severity of panicle blast, brown spot, and brown leaf spot, and rice bug abundance. We also analyzed the yield ranking of each cropping system across site-year combinations to determine mean relative performance and yield stability. When weighted by their relative economic value, UPL Ri-5 had the highest mean performance, but with decreasing performance in low-yielding environments. A rice and mungbean intercropping system had the second highest performance, tied with high-value Dinorado but without decreasing performance in low-yielding environments. Rice and mungbean intercropped with rubber have been adapted by farmers in the Arakan Valley.

Author Comment

This is a submission to PeerJ for review.

Supplemental Information

Supplementary Figures and Tables

DOI: 10.7287/peerj.preprints.2505v1/supp-1