Symptom introduction and Prevention and treatment of Pleurotus ostreatus
Most of the Flammulina velutipes tumors appeared after the first crop of mushrooms were harvested and the second crop of mushrooms were not formed. When it was formed, a tumor appeared from inside the cultivation bag and gradually grew up, looking as small as broad beans and as big as eggs. The surface of the tumor is small nodule-like particles, and each particle has a smooth surface, irregular shape and different sizes. There are separate pieces and several pieces connected together. It was hard in the early stage and began to rot slowly when it was more than 18 ℃ in the later stage. It is not easy to find in the early stage of growth, but it can only be found when the surface of the medium is exposed or the cultivation bag is inflated in the middle stage. The reason for the formation of nodular mushrooms is mainly due to improper operation in bagging or transportation, resulting in gaps or cracks in some cultivation bags. The culture medium has sufficient nutrition in the gap, suitable temperature and humidity, and the fruiting body primordium is formed in the gap inside the cultivation bag. Because other conditions in the gap can not meet the growth of the normal fruiting body, the fruiting body primordia are forced to regenerate in the interstitial space, and the more and more they grow, the larger the tumor mass is formed. Flammulina velutipes tumor absorbs a lot of nutrition and water in the production process, but it is not easy to be found in the early stage, and the production speed is fast in the middle stage, so that the strong fruiting body on the surface of the cultivation bag can not grow normally and shrinks gradually. Even if it can grow a few Flammulina velutipes. The growth is also very slow, and the mushroom body is thin. After the occurrence of the tumor, the normal fruiting body can no longer grow.
The prevention and control methods are as follows: when bagging, the culture material should be uniformly loaded, loose and tight; in the work of transportation and discharge, it should be handled gently and not stacked, so as to reduce the internal rupture of the cultivation bag; scientific management and timely change of tide to promote the rapid growth and development of the fruiting body.
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Harvesting and processing of Pleurotus ostreatus
1. The scientific harvest of Pleurotus ostreatus is the best harvest time when the color of the cap changes from dark reddish brown to light flesh brown and the bacterial membrane has not yet broken. If it cannot be sold or processed in time, or if it is not sure about the harvest, it should be harvested in advance. two。 Scientific processing and storage of Pleurotus ostreatus after harvest, it can be sold directly or after preservation, or it can also be sold after drying and drying. The dried products of Pleurotus ostreatus are easy to be damp and countercurrent, so they should be sealed and stored in a dry place. At the same time, the dried mushroom cover is easy to break and the handle is easy to break.
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Cultivation technique of volvariella volvacea
The cultivation of volvariella volvacea originated in South China and has been cultivated for more than 200 years. Straw mushroom is not only fat, crispy and smooth, delicious, but also has high nutritional value, which is rich in protein, essential amino acids and vitamin C. Regular consumption of straw mushrooms can enhance the body's immunity to diseases, as well as anti-cancer treatment, lowering plasma cholesterol and reducing blood pressure. it is also a good food for patients with diabetes, and it is a kind of delicious and healthy food. it is very popular in domestic and foreign markets. Cultivated straw mushroom
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