Peat is an organic sedimentary moss material formed out of wetland vegetation residues which have not decomposed completely due to an excess of water and lack of oxygen. Based on the structure, natural peat is classified as fibric (slightly decomposed, up to 25%) and amorphous (highly decomposed). Based on formation, nutrition conditions, vegetation, peat mines are divided into 3 types: lowland, transitional, and upland.
Lowlands are nourished by underground water rich in mineral substances. In case of uplands, everything is on the contrary: vegetation roots cannot reach underground water at all and atmospheric precipitation becomes the only source of nutrition. For this reason wetland vegetation varies, therefore the botanical composition of peat mines is different.
Peat characteristic of lower decomposition and lower ash content prevail in upland mines, due to specific growth conditions it manages to absorb a large amount of water and for this reason it is used for crop production purposes. Peat characteristic of higher decomposition, higher ash content and calorific value prevail in lowland mines, it is most often used as fuel, it absorbs less water, peat mines dry faster.
In accordance with Von Post Scale, peat decomposition degree is classified form H1 to H10. Natural, deacidified peat and peat substrates are used in crop production. We use slightly decomposed, upland mine type peat. It is a perfect medium for growing plants. Qualitatively prepared peat, which is collected on peat fields containing 45-50% of moisture, absorbs water very well and it is characteristic of well enough air permeability due to porous structure. Not all peat can be a suitable raw material for manufacture of peat substrates.
Over-dried peat (up to 25%) at the time of collection looses its absorption characteristics, water absorption potential reduces, and more fine particles appear. Therefore, selection of high-quality peat is very important in manufacturing peat substrates in order to form as favourable conditions for growing plants as possible.
Fraction: 0-20 mm; 0-40 mm.
Natural, deacified peat with additives
|5-6 m3 big bale|
|PH 5,5-6,5 instead pH 3.5-4,5|
|Fraction 0-40 instead 0-20|