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Michael Persiano wrote:
Hi Michael Tiziano: I have had many individuals bring me trees with root zone problems related to the "fines" in lava stone-based soil mixes. The "fines" seem to create drainage problems. rught in fact for yamadory some people of teh Vesuvio region use *dirty lava* that is mived with dust and so on and use in well drained containers otherwise has to be sifted exactly as Akadama For this reason, I am not an advocate of the reddish lava stone mixes that I have seen. well in Italy and france as have some problems with aka prices and imports , I personally realize that aka even best quality. because of our climate needs to be watered more often than usual and has a tendency to brittle and become dusty I have not used or seen possolana, but I understand that it is chestnut to gray in color, porous, and fast draining. right I use 4-5 mm grade and feel very happy as I can rececle it after having washed and sterilized http://www.agricola2000.it/ small pic on the right This sounds like it might be a good component for soil mixes. well I appreciate a lot as coarse good retenmtion /release and aeration of the soils and in mix with sequoia bark is fine best regards Tiziano THEO Chiunque puo diventare con la pratica Maestro in Qualsiasi Cosa A.B Dixit http://groups.google.it/group/free.it.arte.bonsai http://www.easybonsai.altervista.org/ |
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