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Moderator: Hello everyone, this is the "Rural Micro Classroom", today we are very honored to invite Mr. Wang Hua of the Institute of Edible Mushrooms of Shanxi Academy of Agricultural Sciences. Hello, Teacher Wang.
Teacher Wang: Hello host, hello everyone.
Host: Teacher Wang Hua told us in the last program that one of the ways to produce mushrooms is to promote ripening at low temperatures, so what other ways are there after low temperature to promote ripening?
Teacher Wang: Well, I will tell you how to replenish the mushroom bag, because moisture is the most direct and important factor in the process of high quality and high yield of Bailing mushroom, according to a characteristic of strong oxygen consumption of Bailing mushroom, in the growth process of fruiting bodies, it has a special large need for water, so scientific water replenishment and water management is very critical.
Host: It seems that both people and bailing mushrooms need this moisture.
Teacher Wang: Yes, it all needs a lot of water. Scientific water management is divided into two stages: the first stage is that the production of nitrogen needs to be slightly dry, the moisture content of the substrate of the culture material is 50% to 60%, 55% is the most appropriate, and this process to maintain the whole process of fruiting body growth, so that good mushrooms, good mushrooms, so before the budding mushrooms, we must first give the mushroom bag a one-time replenishment of water, and do scientific appropriate amount of water replenishment, this time to master four aspects of the problem: the first is why to give the mushroom bag hydration, Because every 1 kg of white spirit mushroom it has to provide 4 to 5 kg of water, 1 to 5 ratio, the fruiting body can develop normally, including from the bud to grow into a finished mushroom, the fruiting body growth physiological metabolism needs the water and the fruiting body's own tissue composition of the water required, about 80% of the mushroom base material is directly provided by the bag base material, 20% is from this space, so there is no guarantee of water, the production and quality of the white spirit mushroom will be affected, the bag of the white spirit mushroom after the cultivation of bacteria and after-maturity culture, More than 95% of the bags have different situations of water shortage, generally its water loss is 20%, serious it is up to 30%, plus in the process of producing nitrogen is divided into two stages of management, so in the process of nitrogen production is slightly dry, when the mushroom is slightly wet. When raising good bacteria, the water content of the mushroom bag culture should not be less than 50%, and less than 50% can not produce good mushrooms. Therefore, if you do not give the mushroom bag water before the mushroom, it is difficult to get out of the mushroom type is very good mushroom, but if it is too much water to make up, it is not ok, so it is appropriate.
Host: So hydration also has to grasp this degree.
Teacher Wang: Yes, this degree must be grasped well, because the decomposition and absorption of nutrients and the transmission of various biochemical reactions are inseparable from water, so we must supplement the water for the second time before the mushrooms are released, generally at 55% to 60%. Then at this time, rely on the mud wall to regulate, maintain the fruiting body growth of the whole process of standard water demand, the amount of water content of the bag and its mushroom rate, yield, quality are closely related, the general binder moisture content should be controlled at 60% to 70%, the most suitable is 65%, the material-water ratio is 1 to 1.9, generally can not be less than 60% nor higher than 70%, can not be wet first and then dry, should be first dry and then wet.
Host: Can this step not be disrupted?
Teacher Wang: Yes, its two processes are to dry first and then wet and then wet and then dry, so it is wrong, water management I will talk about here today.
Moderator: Okay, at the end of the program, we would like to thank Mr. Wang Hua once again for being a guest of our program. This episode ends here, and we'll see you next time.