Influence of carbon dioxide, inoculum rate, amount and mixing of casing soil on Agaricus blazei fruiting bodies yield

Abstract

Influence of carbon dioxide concentration during compost and casing soil overgrowth, inoculum rate, casing soil depth and mixing on Agaricus blazei fruiting bodies yield was determined. Compost composed of chicken manure and wheat straw which is used for commercial button mushrooms cultivation in Slovenia showed to be appropriate for A. blazei fruiting bodies production. Out of the parameters tested in our experiments, casing soil depth and inoculum rate had the biggest positive effect on fruiting bodies production. For A. blazei fruiting bodies production higher rates of inoculum and at least 8.5 kg of commercial casing soil per square meter of compost surface should be used. Higher carbon dioxide concentrations shoved to be beneficial for attaining higher yields of A. blazei fruiting bodies. Raziskovan je bil vpliv koncentracije ogljikovega dioksida med preraščanjem komposta in krovne prsti (pokrivke), količine glivnega vcepka primešanega kompostu ter količine krovne prsti in mešanje le-te po preraščanju s podgobjem na obrod gob Agaricus blazei. Kompost pripravljen iz kurjega gnoja ter pšenične slame, ki ga izdelujejo ter na območju Slovenije uporabljajo za komercialno gojenje šampinjonov, se je izkazal kot primeren za gojenje gob vrste A. blazei. Med testiranimi parametri gojenja sta na povečanje pridelka vplivali predvsem količina krovne prsti in koncentracija glivnega vcepka vmešanega v kompost. Za uspešno gojenje je potrebno uporabiti vsaj 8,5 kg komercialne krovne prsti na kvadratni meter komposta. Višje koncentracije ogljikovega dioksida in pokrivke pozitivno vplivajo na obrod gob.

Optimization of the cultivation conditions for mushroom production with European wild strains of Agaricus subrufescens and Brazilian cultivars

“…Both 5 and 8 cm of casing mixture based on Brazilian soils were better than 3 cm for cultivating ABL‐97/12 in a greenhouse on substrate prepared with local Brazilian wastes . Increasing casing quantity led to higher yield in strain M7700 grown in a climatic chamber on substrate made of chicken manure, wheat straw and gypsum . Besides the effect observed in a greenhouse, no improvement occurred in a bamboo‐covered structure .…”

“…The mushroom has been produced on a commercial scale in Brazil since the early 1990s and exported to several countries. Nowadays it is also cultivated at the industrial level in Japan, China, Taiwan and Korea . These cultures rely on local agroindustrial waste‐based substrates.…”

“…Experiments performed in China showed the possible use of cottonseed hulls, rice hulls, asparagus straw and soybean cake . Efficient A. subrufescens production was also obtained with substrate compositions closer to that used to grow the button mushroom Agaricus bisporus in temperate countries, such as cattle bedding compost/sawdust/cereal bran and chicken manure/wheat straw . Local soils, with or without the addition of vegetal charcoal, have been tested as an alternative to peat in the casing layer used for A. subrufescens cultivation .…”

Improvement of productivity and polysaccharide-protein complex in Agaricus blazei

“…Heavy metals and other inorganic elements in the culture media and in the casing soils. Agaricus blazei is a secondary saprophyte and, unlike most wood-decomposing primary saprophytes, such as Lentinula edodes, Ganoderma lucidum and Pleurotus ostreatus (Pokhrel & Ohga, 2007;Gregori et al, 2008), the growth media must be first degraded by microbes or composted in order to allow nutrients to be absorbed by A. blazei. These differences may be attributed to the type of culture medium used or to the age of the compost.…”

Anaerobically digested food waste in compost for Agaricus bisporus and Agaricus subrufescens and its effect on mushroom productivity

“…deals with commercial, nutritional and production aspects. In Europe it is normally grown on a compost similar to that of A. bisporus . However, it is a tropical mushroom and demands higher temperatures for growth and fruiting.…”