Analysis of common problems in the cultivation of edible fungi

? 1. The variety is not right, and the temperature is improper.

Take the simplest mushroom as an example, many mushroom farmers lack of mastery of the temperature type of the variety, we know that mushroom also has high temperature, low temperature points, hot summer low temperature mushroom can come out? Does Ganoderma lucidum have good heat preservation measures in winter? These are the most basic things, mushroom farmers must master.

? 2. Serious contamination of bacteria bags

Mushroom bag pollution phenomenon is the most troublesome problem for mushroom farmers, see a pile of contaminated bags, all feel sad, material prices, mushroom prices, and increased pollution, the main culprit causing contamination of mushroom bags is incomplete sterilization. Under suitable moisture and temperature conditions, the bacteria that were not killed in the bacteria bag began to reproduce, and began to distribute on the bacteria bag in spots, and later expanded into pieces. So what are the reasons for incomplete sterilization?

To corncob based culture material, generally large particles, mixing material block did not absorb water, material has a core, not after pre-wetting is difficult to sterilize completely; whether atmospheric sterilization or autoclaving, if in the sterilization process did not exhaust cold air, sterilization pot is always occupied by cold air, resulting in poor thermal cycle, will also cause incomplete sterilization; There is no guarantee of sterilization time, sterilization time is insufficient, or in the sterilization process there is a ceasefire, will cause incomplete sterilization, sterilization pot bacteria bag placed too much too tight, there will be incomplete sterilization problems.

3. No colonization of strains or slow growth of mycelium

There are many reasons for this phenomenon, do not rule out some. Weak strain activity can cause hyphae to grow slowly. But most of the reasons were that the bag was too tight or the water content was too high (more than 65%), and the growth rate of hyphae was inhibited because there was not enough oxygen in the bag. Of course, too low a temperature, and poor ventilation or culture medium pH is not appropriate, will also cause slow hair bacteria. After sterilization of bacteria bag, the material bag is not fully cooled, and it is eager to inoculate, which leads to the phenomenon of non-colonization of bacteria. There is also a culture room is too dry, the material surface water loss is serious, and it is impossible to colonize the bacteria.