Influence of irrigation management on the quantity and quality of Agaricus bisporus produced on spent mushroom substrate (SMS) based casings

J. Barry, O. Doyle, J. Grant, H. Grogan
Five mushroom casing types (C) were prepared using fine and medium grade vermiculite, spent mushroom substrate (SMS), peat and sugar beet lime (SBL) in varying proportions: C1 = Peat 88% (v/v) and SBL 12% (v/v); C2 = SMS; C3 = Peat 70% (v/v), SMS 18% (v/v) and SBL 12% (v/v); C4 = SMS 70% (v/v) and fine grade vermiculite 30% (v/v); C5 = SMS 70% (v/v) and medium grade vermiculite 30% (v/v). The volumetric water contents of treatment casings were dried to within predetermined ranges V1 = 46 to 48% (v/v); V2 = 52 to 54% (v/v); V3 = 58 to 60% (v/v) before saturating. SMS was leached to 1.85 mS cm-1 in the case of C2, C4 and C5 and 3.49 mS cm-1 in the case of C3 before incorporation. The peat used in casing types C1 and C3 was a blend of black and brown peat in the ratio of eight parts black peat to two parts brown peat. Casings whose volumetric water contents were allowed to decline between 58 and 60% (v/v) before saturation were significantly higher yielding and produced mushrooms which were whiter and significantly lower in dry matter. Peat/SBL and Peat/SMS/SBL casings were not significantly different in terms of mushroom yield and both casings were higher yielding in mushrooms than the remaining casings containing SMS.
Barry, J., Doyle, O., Grant, J. and Grogan, H. (2016). Influence of irrigation management on the quantity and quality of Agaricus bisporus produced on spent mushroom substrate (SMS) based casings. Acta Hortic. 1112, 299-306
DOI: 10.17660/ActaHortic.2016.1112.40
https://doi.org/10.17660/ActaHortic.2016.1112.40
yield, colour, dry matter
English

Acta Horticulturae