Influence of Stirring Time on Physical Structure of Casing Soil and Yield and Quality of Agaricus bisporus

doi:10.11924/j.issn.1000-6850.casb16070129

Abstract

Abstract: To optimize the casing technique of Agaricus bisporus, use peat as casing soil material and investigate the effect of stirring time on the physical structure of casing soil and on the yield and quality of Agaricus bisporus. The results showed that, air-filled porosity of casing soil decreased with stirring time while bulk density increased with stirring time. Air-filled porosity of casing soil was positively related to mushroom yield and negatively related to marketable mushroom ratio and fruit body size. Bulk density was negatively related to mushroom yield and positively related to marketable mushroom ratio and fruit body size. Casing soil made by short stirring time (5-20 min) gave a better result on total yield ofAgaricus bisporus and the yield of each flush was more even. Casing soil by long stirring time (40-120 min) produced big size mushroom but resulted in reduction of total yield and non-uniform flush yield. The optimal stirring time under given condition was 10 min, total mushroom yield for three flushes was 34.5 kg/m2 and marketable mushroom yield was 27 kg/m2. This study preliminarily revealed the influence of casing soil physical structure on yield and quality of button mushroom, provided references for the optimization the casing techniques and the selection of casing material with high quality.

CLC Number:

S646.9

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