We are no longer updating the Research Digest. All content remains.
The Permaculture Research Digest has summaries of newly published permaculture-related research. All items are hyper-linked to the original publication.
The 'January 2013' archive contains 60 items published in 2012.
Items marked with a # have restricted public access, although abstracts are freely available.
This meta-analysis tested whether within-field crop
diversification can lead to win-win relationships between yield and biocontrol of
crop pests. 26 studies were considered. Win-win relationships were found between per plant yield of the primary crop and biocontrol in polyculturesystems that
minimized intraspecific competition. Findings were
consistent across geographical regions and by type of primary crop. Practitioners should therefore utilize
polycultures that decrease plant–plant competition through a
substitution of large quantities of the primary crop for
compatibly harvestable secondary crops. Additionally, if planting at
high cropping densities, it is important that legumes be the secondary
crop.
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