Mushroom death causes and countermeasures

Insufficient nutrition is a bad ingredient. In the cultivation materials, there are many forages and less fodder, resulting in insufficient nitrogen sources and unbalanced carbon and nitrogen ratios, resulting in lack of nutrients. The second is the material loss. The cultivation of materials is too long, overcooked, the temperature is too high (above 70°C), and nutrient consumption is too much. On the other hand, the time for composting is insufficient, the material temperature does not reach 60°C, and nutrients in raw materials cannot be fully decomposed and transformed. . The third is a wide variety of thin materials. The thickness of the culture material is less than 10 cm, and the nutrient supply at the late stage of mushrooming is inefficient. The above reasons can cause undernutrition and dead mushrooms. Countermeasures: When formulating nutrients, it is necessary to strictly prepare in accordance with the requirements, so that the carbon-nitrogen ratio can reach 28-30:1, and conscientiously do a good job. The ageing of mycelial aging mushroom mushrooms is too much, or the temperature of strain production is too high, improper preservation, long storage period, can cause degradation and aging of mycelium, decreased viability, lack of accumulation of nutrients in the body and cause mushroom buds. Atrophy died. Countermeasures: High-quality strains should be selected to eliminate contaminated strains in time; conditions for the growth and development of suitable mycelium should be created. Indoors should be clean and fresh, and air should be kept fresh to prevent high-temperature culture: bacteria should be kept ready for use and should not be stored for a long time. Sustained high temperature die mushroom In the early stage of mushrooming, mushroom shed temperature reached above 20°C, resulting in evaporation of mushroom bed water and mushroom metabolism, water and nutrient supply is not enough, coupled with poor ventilation, can cause small bud due to lack of nutrition With water and withered to death. Countermeasures: The fruiting period should pay close attention to the changes in the weather, adjust the temperature of the greenhouse according to the temperature, strengthen ventilation, and prevent the occurrence of high temperature phenomenon in the shed. Poorly ventilated live mushroom galleries have poor long-term ventilation, and the metabolic heat developed by mushroom fruit bodies cannot be quickly removed, resulting in oxygen deficiency and excessive carbon dioxide concentration (greater than 0.1%), affecting the normal growth and development of fruiting bodies, resulting in some young mushrooms Death: The death mushroom phenomenon is even more serious if it encounters high temperatures. Countermeasures: Pay attention to the ventilation of the mushroom shed (2-3 times a day). When the temperature is high, ventilation should be performed in the morning, evening, or night. Improper water spray dead mushroom cover soil is not timely replenishment, mushroom water or mushroom water spray, excessive water spray at high temperatures (Potato Shed humidity above 95%), can make the bud death. Countermeasures: In the fruiting stage, when the white fruit body has a grain size, the spray must be light, the droplets must be fine, and the amount of water must be small to prevent leakage into the material: When the fruiting body grows to the size of the bean, it can be slightly increased. The amount of water spray and the number of sprays should be increased. At the same time, be careful not to spray the closed water, and immediately after each water spray, the indoor air circulation should be performed to reduce the excessive humidity. Acidity and alkalinity is not suitable for the growth of mushroom mycelium with a suitable pH of 6.0-8.0. During the mushrooming period, if the pH value of the upper layer and the applied water is below 5.0 or above 9.0, the bud will die. Countermeasures: Preparation of culture materials and soil cover should be carried out according to requirements. When spraying water, the pH of the culture material and soil should be tested first, and then the pH of the spray water should be reasonably determined based on the test results to prevent over- or under-consumption. If the mushroom position is too high, if the mycelium grows too fast before mushrooming, it will easily form a high mushroom and form a dense fruit body on the soil surface. Due to malnutrition and the impact of water spray, some mushrooms will die. Countermeasures: After the soil is covered, the temperature should be properly controlled to maintain the suitable humidity in the soil, and the growth of mycelium should be promoted to the cover soil, and it should be transferred from vegetative growth to reproductive growth as soon as possible so that the fruit body can be formed in the coarse soil layer and fine soil layer. Between, to prevent too much or too low. Diseases and Insect Pests Death of Common Mushrooms Mushroom common diseases include rust spot and dry rot. Insects such as red spider, dung fly, and gnat mosquitoes can all cause dead mushrooms or reduce quality. In addition, excessive use of pesticides when controlling pests and diseases can also cause dead mushrooms. . Countermeasures: In the production, we should adhere to the principle of comprehensive prevention and control of "prevention from the main, supplemented by pharmaceuticals," to prevent pests and diseases from entering the mushroom bed with culture materials, eliminate pests and diseases in the cover soil, and completely remove the pathogenic bacteria in the mushroom shed. And pests, to create environmental conditions suitable for the growth of mushrooms: After the occurrence of pests and diseases, we must promptly remove the mushrooms, dead mushrooms, and use drugs for prevention and control, so as not to expand the spread. Mushroom damage Mushrooms The first and second tides produce too dense mushrooms. When mushrooms are shaken or mechanically damaged, some of the mushrooms die. Countermeasures: When picking mushrooms, the action should be light and fine to avoid man-made injuries.

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