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

机译：棉兰老岛橡胶种植园的粮食生产多样化系统：水稻品种混合物和间作绿豆的水稻

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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.
机译：将非粮食系统中的粮食生产（例如橡胶种植园和生物燃料或生物能源作物）包括在内，可能有助于家庭粮食安全。我们评估了在菲律宾棉兰老岛Arakan谷地进行的实验中，在年轻的橡胶园中种植水稻，绿豆，水稻品种混合物和间作大豆的水稻的潜力。水稻混合物由两行或三行的Dinorado品种，高价值但低产量的品种和高产UPL Ri-5品种组成。水稻和绿豆间作处理由两行或三行水稻和绿豆的不同组合组成。我们使用广义线性混合模型来评估每种作物单独以及在混合或间作处理中的产量。我们还评估了土地当量比率，产量，杂草生物量（其中香叶天竺葵尤为丰富），稻瘟病菌和稻瘟病菌引起的疾病严重程度以及稻虫（Leptocorisa acuta）的丰度。我们分析了跨站点-年份组合的每个种植系统的产量排名，以确定平均相对表现和产量稳定性。如果按其相对经济价值加权，UPL Ri-5的平均性能最高，但在低产量环境中的性能却有所下降。水稻和绿豆间作系统的表现第二高，与高价值Dinorado并驾齐驱，但在低产环境下相对性能却没有下降。套胶的稻谷和绿豆已被阿拉干谷地的农民采用。

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