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Old May 14, 2020   #6
Join Date: Jun 2010
Location: Romania/Germany , z 4-6
Posts: 1,451

I think it's really important to have a low amount of herbicide in the organic that you use. Unfortunately one can't really know how much, there was a test here in Germany on a bunch of organics, and some of them had traces of up to 10 different ones.
Also I tried some 'new' only plant based ones, and they seem to work surprisingly well, despite lower NPK, probably a much higher Mg and possibly more useful trace elements.
My favourite is still a 7-3-10 with mycorrhizae (neudorff), very good for container gardening.
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