ISHS Acta Horticulturae 238: Symposium on Substrates in Horticulture other than Soils in situ
DEVELOPMENTS IN THE MEASUREMENT OF AIR FILLED POROSITY OF PEAT SUBSTRATES |
| Authors: | P.J. Byrne, B. Carty |
| Abstract:
A modified method for the measurement of Air Filled Porosity (AFP) has been developed by the Research & Development Department of Bord na Mona, Ireland in order to provide a robust laboratory method for the determination of the drainage properties of peat substrates destined for use in nursery stock. A special vessel with a rigid extension collar and a sealable base is used for this test and overcomes problems encountered when using standard flower pots. The effects of newly available peat amendments - namely peat fibre and coarse peat particles - were determined, and their possible contribution to the development of nursery stock media is discussed. | |
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