Analysis of Common Problems of Planting Pleurotus eryngii

First, the direct cause of bacterial bag contamination caused by most bacterial bag contamination is incomplete sterilization. Under the appropriate conditions of moisture and temperature, the bacteria that did not kill in the bacterial bag began to multiply. The bacteria began to spread on the bag and spread out later. Causes of incomplete sterilization include: 1. When the material is mixed, there is no water permeation, and there is a core in the material. This is especially the case with wood chips, corn cobs and other hard culture materials. 2. During the sterilization process, no cold air is exhausted, and part of the sterilizer is always occupied by cold air, resulting in no good thermal cycling. 3. Insufficient sterilizing time, or a ceasefire in the sterilization process, or too much tightness in the sterilization bag inside the sterilizing pot, can cause incomplete sterilization.
Second, the slow growth of mycelium 1. The weak viability of the bacteria can cause slow growth of mycelium. The purchase of bacteria must be purchased in units with large scale and high credibility. The suitable bacteria age is generally 30-40 days, and the hyphae are white, dense and stout, indicating strong vitality. 2. If the bag load is too tight or the water content is too high (more than 65%), there is not enough oxygen in the bag to inhibit the growth rate of the mycelium. 3. The germination temperature is too low, such as less than 20 °C, and poor ventilation or the pH of the culture material is not appropriate (appropriate ph value of about 7), can also cause slow development of bacteria.

Third, the mushroom bag side of the mushroom, and more deformed in the sterilization process, bacteria bags squeezed each other, the circular bag deformed, resulting in gaps between the cultivation material and bacteria bags, provided the air for the mycelial screwed knot space. Coupled with low temperature, light stimulation and mechanical stimuli (such as pouring bags, etc.), the mycelia of the side of the bag is knotted to form the primordia and develop into fruit bodies. Due to the restrictions of plastic bags, all of these mushrooms are deformed. When this happens, the mushroom buds should be squeezed in time to stop the growth, so as to avoid causing more nutritional waste.

Fourth, the small size of the fruiting body and the low commodity rate are the reasons for this situation. After differentiation of the primordia, many small buds grow on both sides of the bacterium bag, ranging from a few to several dozen. However, due to the limitations of nutrition and space, most of these mushroom buds cannot grow into commodity mushrooms. Therefore, budding should be conducted to avoid wasting nutrients. The principle of sparse buds is that when the buds are formed, they have good position, mushroom shape and similar size buds, leaving 4-6 pieces on each side. When the fruiting body grows to about two centimeters, it is once again optimized. Keep 2-4 faces. In this way, higher product rates can be guaranteed.

Fifth, hyphae prosperous in the fruiting time, the mycelium suddenly prosperous, bacteria bags at both ends, fruiting bodies covered with white mycelium, fruiting bodies from the middle of the cap began to shrank, severe fruiting body yellowing death. This is mainly due to the sudden increase in temperature inside the mushroom shed. In the mushrooming stage, mycelium and fruit bodies are growing. Under normal circumstances, the two kinds of growth reach a dynamic balance. It is the temperature that determines this balance. A relatively high temperature favors the growth of mycelium, and a lower temperature favors the differentiation of the primordia. Sudden rise in temperature has broken the balance and made mycelium growth an advantage. In the case of nutrition and moisture, the supply of nutrients and moisture for the supply of mycelium is increased, nutrition and moisture are supplied to the fruit body, and the fruit body nutrition is reversed when severe, and fruit body atrophy and even death of yellow crop appear on the appearance. It is necessary to prevent sudden temperature rise in the mushroom shed.

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Leo Group Company is the largest and most powerful technology manufacturing enterprise. Our production line including refrigerated milk cooling tanks, milk storage tanks, milking machines. Road Milk Tanker and TMR feed mixers. LEO Group which restructured by a former military enterprise in 1999, and gradually developed into a research and development, design and manufacturing, sales and engineering, installation and service in an integrated group of companies, becomes the China Dairy Industry Association member units, the Ministry of Agriculture in 2009 was listed as agricultural subsidies sentinel the enterprises.

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