Potting soil manufacturers may blend peats of different age and origin. The inclusion of Bord na Móna Irish peat in such mixtures will retard the shrinkage commonly associated with younger peats.
Stability is the innate property of peat that resists breakdown due to mechanical, physical or microbial degradation.
…the use of stable peat that does not slump is recommended. Bord na Móna peat is ideal for this purpose.
See studies involving Irish peats below.
Volume reduction of Northern European (H3) and Bord na Móna (H5) peat over two years.
Shinkage of H5/H6 (Irish) peat compared to H2/H3 younger (Northern European) peat over two years.
Values linked by the same letter do not significantly differ (Duncan’s multiple range test p=0.05).
Data from Aendekerk,T (2001). Decomposition of peat substrates in relation to physical properties and growth of Skimmia. Acta Horticulturae, 548, 261-268.
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