Community Agroforestry Flanders
Published February 2026 | Version v1
Publication Open

A meta-analysis on the impact of trees on yield of intercrops in alley-cropping systems of temperate climates

Authors/Creators

  • 1. Department of Agronomy, Food, Natural Resources, Animals and the Environment, University of Padova, Legnaro, Italy
  • 2. Research Institute for Agriculture, Fisheries and Food
  • 3. ILVO
  • 4. ROR icon Instituut voor Landbouw en Visserijonderzoek
  • 5. University of Padova
  • 6. ROR icon Ghent University

Description

  • Meta-analysis on the grain yield of arable intercrops in temperate alleycropping.
  • 30 % average yield reduction in alleycropping compared to full sun from 18 trials.
  • The negative effect of trees on yield increases with tree vicinity and tree aging.
  • Trees have lower detrimental impact on winter, especially barley, vs. summer crops.
  • Less detrimental or positive impact under low rainfall and high evapotranspiration.

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