“…Peat as a growing medium has all these required characteristics, although compression and water repellency of peat may be problems. In long-term cultivation of heavily irrigated crops, compression can decrease aeration so dramatically that the substrate becomes waterlogged (Cantliffe et al, 2003;Heiskanen, 1995). The ideal growing medium would have the favourable characteristics of peat, but it should also have better re-wettability and capacity to conserve high air-filled porosity.…”