The main reasons for the decrease of Pleurotus ostreatus production

1. Poor quality of strains: The quality of strains is the key to successful cultivation. In order to reduce costs, many mushroom farmers rely on their own experience in breeding mushrooms to reproduce original seeds and produce seeds, or go to some private strain stations with weak technical force and chaotic management to purchase strains. The strains produced by them are bound to have low viability, easy degradation, poor disease resistance and low yield.

2. Improper variety selection: The variety selection of spring and summer mushrooms is especially important. Some mushroom farmers think that the mushroom shape of high temperature varieties is poor and the yield is ordinary, but blindly select the wide temperature varieties with better mushroom shape and yield for spring and summer mushroom cultivation. Once encountered continuous high temperature, there will be no mushroom problem.

3, culture material sterilization is not complete: clinker cultivation If the culture material sterilization is not complete, the miscellaneous bacteria living in the material will compete for nutrients with the edible fungus hyphae, so that it can not normally decompose the culture material and cause production reduction or even complete failure, many mushroom farmers in this link problems, most of them have self-made atmospheric sterilization pot, the top of the pot has no vent, steam is difficult to rise to the top, and escape from the side door or pot wall seam, dead angle is large; There is no thermometer jack, the temperature in the pot can not be accurately monitored, the sterilization time can not be guaranteed, and the sterilization time is too short.

4. Rough inoculation technology: The inoculation process of clinker bag cultivation is almost the same as that of seed production, requiring aseptic operation. Most mushroom farmers do not have fixed inoculation room and fungus room. Some of them are in greenhouses or air-raid shelters and other cultivation sites, only after some simple disinfection, hand-catching inoculation, on-the-spot bacteria or bacteria here, mushroom there, some old mushroom sheds, air-raid shelters after years of cultivation, a large number of miscellaneous bacteria, pests in the environment increased, easy to cause the occurrence and spread of diseases and insect pests.

5. Other problems: First, the proportion of lime added in the ingredients is too large, which affects the formation of Pleurotus ostreatus fruit body. Second, some farmers only use a layer of newspaper seal, can not prevent the role of miscellaneous bacteria, and easily damaged after moisture. Third, the growth period is the pursuit of yield, watering too frequently, humidity is too large, a case of high temperature will appear rotten mushrooms, mold pollution and so on.