Analysis of information sources in references of the Wikipedia article "Пермакультура" in Ukrainian language version.
All the permaculture farms we visited had large, fully-functioning vermicompost which produced fertilizer that was naturally rich in nutrients and acid that was used as a substance for fumigation instead of synthetic based substances.
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value. Порожньо.]. Permaculture Research Institute of Australia. Retrieved 15 July 2012.{{cite web}}
: Обслуговування CS1: Сторінки з параметром url-status, але без параметра archive-url (посилання)