Key Points of Disinfection Techniques for Oyster Mushroom Indoor Cultivation Rooms

Mushroom rooms must undergo strict disinfection treatment before use. There are many disinfection methods, which can be selected according to specific conditions.

Sulfur fumigation: generally, the mushroom room is sealed first. Then sulfur is lit for fumigation, using about 15 grams of sulfur per 1 cubic meter. This method is the simplest.

Formaldehyde and potassium permanganate fumigation: likewise seal the mushroom room well, using 10 milliliters of formaldehyde plus 4 grams of potassium permanganate per 1 cubic meter. Formaldehyde has strong bactericidal power but poor insecticidal effect, and is highly irritating, so operators must pay attention to protection during disinfection treatment.

Bleaching powder spray: add 1 kilogram of bleaching powder to 30 kilograms of water for spraying. This method is relatively simple, does not require sealing the mushroom room, and has strong bactericidal power and penetration, giving a good disinfection effect. However, the solution must be used immediately after preparation, otherwise the bactericidal effect will be reduced. Bleaching powder is corrosive, so pay attention to protection during operation.

Bordeaux mixture spray: use a concentration of 1%, that is, 1% copper sulfate plus 3% lime, prepared with water, using 25 kilograms per 111 square meters. Old mushroom rooms often have many pests, diseases, and contaminating microorganisms due to continuous use. Before each use, special attention must be paid to strict disinfection; otherwise, contaminating microorganisms may be introduced or pests may breed, bringing losses to production.