Improving intercropping: a synthesis of research in agronomy, plant physiology and ecology

Rob W. Brooker (Lead / Corresponding author), Alison E. Bennett, Wen Feng Cong, Tim J. Daniell, Timothy S. George, Paul D. Hallett, Cathy Hawes, Pietro P. M. Iannetta, Hamlyn G. Jones, Alison J. Karley, Long Li, Blair M. Mckenzie, Robin J. Pakeman, Eric Paterson, Christian Schöb, Jianbo Shen, Geoff Squire, Christine A. Watson, Chaochun Zhang, Fusuo ZhangJunling Zhang, Philip J. White

    Research output: Contribution to journalArticle

    280 Citations (Scopus)

    Abstract

    Intercropping is a farming practice involving two or more crop species, or genotypes, growing together and coexisting for a time. On the fringes of modern intensive agriculture, intercropping is important in many subsistence or low-input/resource-limited agricultural systems. By allowing genuine yield gains without increased inputs, or greater stability of yield with decreased inputs, intercropping could be one route to delivering 'sustainable intensification'. We discuss how recent knowledge from agronomy, plant physiology and ecology can be combined with the aim of improving intercropping systems. Recent advances in agronomy and plant physiology include better understanding of the mechanisms of interactions between crop genotypes and species - for example, enhanced resource availability through niche complementarity. Ecological advances include better understanding of the context-dependency of interactions, the mechanisms behind disease and pest avoidance, the links between above- and below-ground systems, and the role of microtopographic variation in coexistence. This improved understanding can guide approaches for improving intercropping systems, including breeding crops for intercropping. Although such advances can help to improve intercropping systems, we suggest that other topics also need addressing. These include better assessment of the wider benefits of intercropping in terms of multiple ecosystem services, collaboration with agricultural engineering, and more effective interdisciplinary research.

    Original languageEnglish
    Pages (from-to)107-117
    Number of pages11
    JournalNew Phytologist
    Volume206
    Issue number1
    DOIs
    Publication statusPublished - Apr 2015

    Keywords

    • Agriculture
    • Ecosystem services
    • Intercropping
    • Organismal interactions
    • Resource use
    • Soil biodiversity
    • Sustainable intensification

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  • Cite this

    Brooker, R. W., Bennett, A. E., Cong, W. F., Daniell, T. J., George, T. S., Hallett, P. D., Hawes, C., Iannetta, P. P. M., Jones, H. G., Karley, A. J., Li, L., Mckenzie, B. M., Pakeman, R. J., Paterson, E., Schöb, C., Shen, J., Squire, G., Watson, C. A., Zhang, C., ... White, P. J. (2015). Improving intercropping: a synthesis of research in agronomy, plant physiology and ecology. New Phytologist, 206(1), 107-117. https://doi.org/10.1111/nph.13132