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.
Cover crops have been promoted for their abilities to reduce erosion and
retain soil nutrients. Now there is evidence that they can
significantly reduce weed seeds. Crops such as red clover, planted after a main
crop’s harvest, provide cover for insects such as
ground beetles that feed on weed seed. Rodents are also important consumers
of weed seeds and tend to prefer foraging under the
shelter provided by cover. As a result, in fields planted with cover crops,
three to four times more weed seed is eliminated.
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