Annotation

The objective of the study is to compare the effect of different EM solutions to inhibit competitive micro-flora in preparation of straw substrate for further inoculation of golden and pink oyster mushrooms for intensive cultivation under artificial conditions. Methods. Mycological and statistical. Specific features of cultivation of exotic oyster mushrooms on wheat straw and barley substrate, which is fermented with EM solutions under cold cultivation in protected soil conditions, have been investigated. The peculiarities of fruiting the different strains of oyster mushroom were identified when obtaining marketable products in the conditions of protected soil. The availability of nutrients, such as total nitrogen and phosphorus content, are quite significant factors that limit substrate colonization and directly influence productivity level. It has been determined that the straw fermented with EM solutions must be used for the preparation of the substrate for all-season cultivation of exotic species of oyster mushrooms. This type of substrate is characterized by rapid onset of phases of growth and development of mushrooms, which leads to an increase in overall productivity. Such a substrate also improves the marketability of products. The rate of flow of the phases of growth and development of exotic species of oyster mushrooms is a fairly significant indicator that characterizes the relationship between cultivation conditions and its morphological and biological characteristics. When creating optimal conditions for growing with the application of substrates with a high level of nutrient supply, the flow of processes of growth and development of oyster mushrooms becomes more intense. We have developed intensive energy-saving technology for industrial cultivation of exotic species of oyster mushrooms applying EM solutions. The technology allows reducing energy resources for sterilization of straw substrate, namely the removal of competitive micro-flora such as representatives of the genus Trichoderma and Penicillum. Taking into account the obtained data and the results of previous studies concerning cultivation of pink and golden oyster mushrooms, treatment of straw substrate with EM solutions and layered inoculation contribute to reducing the time of block fouling.