University of Tehran, College of AbureyhanJournal of Crops Improvement2008-833719420180220Effects of the replacing vermicompost and perlite instead of peat as casing soil on growth and yield of mushroomEffects of the replacing vermicompost and perlite instead of peat as casing soil on growth and yield of mushroom8378526537610.22059/jci.2018.220952.1583FAS. HasanHosseiniMohammadRafiee0000000284137404RahimBarzegarJournal Article20161121<strong>Peat is the most important source of casing soil for growing mushroom. Peat often imported or derived from wetlands which have unfavorable environmental impacts. In order to evaluate the effects of the replacing vermicompost and perlite as casing soil instead of peat on growth and yield of the mushrooms (<em>Agaricus bisporus</em>), a factorial experiment was conducted on the randomized complete block design with three replications at Kosar mushroom farm in winter, 2015. Ten treatments in different ratios (volume percentage) of perlite: vermicompost: peat including T<sub>1</sub> (0: 0: 100) T<sub>2</sub>: (0: 25: 75) T<sub>3</sub>: (12.5: 12.5: 75) T<sub>4</sub>: (16.7: 33.3: 50) T<sub>5</sub> (25: 25: 50) T<sub>6</sub>: (18.5: 56.5: 25) T<sub>7</sub> (25: 50: 25) T<sub>8</sub>: (37.5: 37.5: 25) T<sub>9</sub>: (33.3: 0: 66.7) T<sub>10</sub> (50: 50: 0) were used. The maximum yield was obtained with T<sub>3</sub> treatment with the average of 14.72 kg /m<sup>2</sup> and the minimum yield was observed in T<sub>10</sub> treatment with 9.43 kg/m<sup>2</sup>. The maximum and minimum numbers of harvested mushrooms were observed in treatment of T<sub>3 </sub>with 547 numbers and the treatment of T<sub>10</sub> with the number of 244.67, respectively. For cap diameter, the treatment of T<sub>10</sub> with an average of 5.9 cm had the maximum and the treatment of T<sub>9</sub> with an average of 4.8 cm had the minimum cap diameter. For the average weight of individual mushroom, treatments of T<sub>10</sub> and T<sub>3</sub> with the average of 38 and 26 gr had the maximum and minimum weight of each mushroom, respectively. The results showed that T<sub>3</sub> soil casing combination (12.5: 12.5: 75) can be replaced for peat.</strong><strong>Peat is the most important source of casing soil for growing mushroom. Peat often imported or derived from wetlands which have unfavorable environmental impacts. In order to evaluate the effects of the replacing vermicompost and perlite as casing soil instead of peat on growth and yield of the mushrooms (<em>Agaricus bisporus</em>), a factorial experiment was conducted on the randomized complete block design with three replications at Kosar mushroom farm in winter, 2015. Ten treatments in different ratios (volume percentage) of perlite: vermicompost: peat including T<sub>1</sub> (0: 0: 100) T<sub>2</sub>: (0: 25: 75) T<sub>3</sub>: (12.5: 12.5: 75) T<sub>4</sub>: (16.7: 33.3: 50) T<sub>5</sub> (25: 25: 50) T<sub>6</sub>: (18.5: 56.5: 25) T<sub>7</sub> (25: 50: 25) T<sub>8</sub>: (37.5: 37.5: 25) T<sub>9</sub>: (33.3: 0: 66.7) T<sub>10</sub> (50: 50: 0) were used. The maximum yield was obtained with T<sub>3</sub> treatment with the average of 14.72 kg /m<sup>2</sup> and the minimum yield was observed in T<sub>10</sub> treatment with 9.43 kg/m<sup>2</sup>. The maximum and minimum numbers of harvested mushrooms were observed in treatment of T<sub>3 </sub>with 547 numbers and the treatment of T<sub>10</sub> with the number of 244.67, respectively. For cap diameter, the treatment of T<sub>10</sub> with an average of 5.9 cm had the maximum and the treatment of T<sub>9</sub> with an average of 4.8 cm had the minimum cap diameter. For the average weight of individual mushroom, treatments of T<sub>10</sub> and T<sub>3</sub> with the average of 38 and 26 gr had the maximum and minimum weight of each mushroom, respectively. The results showed that T<sub>3</sub> soil casing combination (12.5: 12.5: 75) can be replaced for peat.</strong>https://jci.ut.ac.ir/article_65376_2d1e98bf4a50984bf5c9cfed31fb8ce8.pdf