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Horticultural peat

Block peat

Block peat is of botanical origin and consists mainly of a mixture of the least decomposed residue of different types of naturally compressed sphagnum moss (Sphagnum sp.). Block peat is collected from the peat layer using a mechanical cutting method. Block peat is dried by the sun and the wind until it becomes completely dry inside – the process takes 1–2 years. For better structural results, the cut block peat will be left to freeze in stacks in winter before collection.

Block peat is used as a component of structural improvement for the production of substrates and, sometimes, for planting soils. Block peat will be fractured and screened into suitable fractions. Block peat can be formed into products of ideal structure, which cannot be achieved using other types of peat. No other type of peat has the air content and water absorption capabilities of fractured block peat. Block peat is generally transported unpackaged and with trucks; if possible, ship transportation can be used. Block peat has the following main characteristics:

1. Degree of decomposition H1 to H3 on the von Post scale.
2. pH (in CaCl2) 3,3 – 4,3.
3. Water absorbency 900–1200 ml/100 g.
4. Minimum dry organic matter content 95%.
5. Water content 40–50%.
6. Volume weight 100–200 kg/cbm.
7. The measures of peat blocks are approximately 400x170x200 mm