Reasonable selection of Scientific Formula of Pleurotus ostreatus

Pleurotus ostreatus has low requirements for raw materials, and many industrial and agricultural scraps can be used as raw materials. However, whether the ratio of carbon to nitrogen in the culture material is scientific and whether the addition of other excipients is reasonable is a problem that can not be ignored in the production of Pleurotus ostreatus. At present, the bag cultivation of Pleurotus ostreatus mainly uses cotton seed shell as raw material, so the quality of cotton seed shell is directly related to the yield of Pleurotus ostreatus and even whether it can be cultivated successfully. To choose fresh and high-quality cottonseed shell, if you choose moldy and deteriorated cottonseed shell, it will cause miscellaneous bacteria pollution, and even cause cultivation failure. Pesticides or other chemicals can not be added to the culture material, otherwise it will not only inhibit the growth of mycelium, but also affect human health.

The cottonseed shell should be exposed to the sun for 2 to 3 days before cultivation to kill the miscellaneous bacteria. Disinfection should be done on the sites where Pleurotus ostreatus has been cultivated. Adding antimicrobial agent to cotton seed shell, 1000 kg cotton seed shell should be added 50% carbendazim 1 kg, quicklime 10 kg, and the pH value of culture material should be adjusted to 7.5-8, which can prevent miscellaneous bacteria infection.

Bag planting is different from sunny bed cultivation, plastic bags have good heat preservation performance, so the ratio of material to water must be strictly mastered when mixing materials. In general, the air temperature is low in spring, the air humidity is low, and the ratio of material to water is 1 ∶ 1.8. in autumn, the temperature is high and the air humidity is high, and the ratio of material to water should be 1 ∶ 1.2 to 1 ∶ 1.3. the cotton husk with long cotton wool can be added with more water, and the cotton with short cotton wool should be added less. When mixing the material, add water evenly and stir fully. After mixing, the material pile should be properly stuffed for several hours to make the cotton shell fully absorb water. Before bagging, you should test whether the water content of the culture material is suitable, generally hold the culture material by hand, and it is appropriate to see the water droplets in the fingers without dripping. When bagging, it is necessary to mix the material while bagging, so as not to dry and wet uneven and affect the growth of mycelium.