A Perlite Primer – The Big White Stuff
mars 23, 2010 1:51
Large, coarse perlite alone may not be the best aggregate for a peat-based growing medium. In general, a mix of different sizes is desirable to provide uniformly distributed air spaces and to avoid the negative aspects of the ‘sand & rocks effect’ or in this case the ‘peat and rocks effect.’ How do sand and rocks relate to a growing medium? You’ve probably seen… Voir l’article
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