• Intercropping has been seen as an advantageous strategy in sustainable agriculture. Plants however interact with one another both above and below ground with members of the same species (intraspecific) or members of a different species (interspecific) for nutrients, water and light. It is therefore essential to understand these interactions when intercropped. The objective was to examine the above and below ground interactions between onion and lettuce in monocrop and intercrop systems. We examined the various possible interactions (no competition, above ground, below ground, or full) using a full factorial randomized design under greenhouse conditions. Onion yield was highest in intraspecific above ground competition and lowest in below ground and full interspecific competition with lettuce.

  • Jessica L. de Haan Brock University · Department of Biological Sciences
    Bachelor of Science

    Liette Vasseur Dr. Vasseur is a full professor in the Department of Biological Sciences at Brock University



    Copyright:© 2014 by authors and Scientific Research Publishing Inc.
    This work is licensed under the Creative Commons Attribution International License (CC BY).

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