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

PeerJ

article

Rosa Fe Hondrade¹  Edwin Hondrade¹  Lianqing Zheng²  Francisco Elazegui⁵  Jo-Anne Lynne Joy E. Duque¹  Christopher C. Mundt⁶  Casiana M. Vera Cruz⁷  Karen A. Garrett² 

[1]University of Southern Mindanao

[2]Department of Plant Pathology, Kansas State University

[3]Department of Statistics, Kansas State University

[4]Gilead Sciences, Inc.

[5]International Rice Research Institute

[6]Plant Pathology Department, Oregon State University

[7]Genetics and Biotechnology Division, International Rice Research Institute

[8]Institute for Sustainable Food Systems, University of Florida

[9]Plant Pathology Department, University of Florida

[10]Emerging Pathogens Institute, University of Florida

关键词: Agricultural diversification;    Agroforestry;    Cultivar mixtures;    Hevea brasiliensis;    Intercropping;    Mindanao;    Mungbean;    Philippines;    Rice;    Rubber plantations;   

DOI  :  10.7717/peerj.2975

学科分类：社会科学、人文和艺术（综合）

来源: Inra

【 摘 要 】

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 planting rice, mungbean, rice cultivar mixtures, and rice intercropped with mungbean in young rubber plantations in experiments in the Arakan Valley of Mindanao in the Philippines. 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. We also evaluated a land equivalent ratio for yield, along with weed biomass (where Ageratum conyzoides was particularly abundant), the severity of disease caused by Magnaporthe oryzae and Cochliobolus miyabeanus, and rice bug (Leptocorisa acuta) abundance. We 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 relative performance in low-yielding environments. Rice and mungbean intercropped with rubber have been adopted by farmers in the Arakan Valley.

【 授权许可】

CC BY