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The Harm and Control Methods of Common Contaminant Fungi in Edible Mushroom Cultivation
I. Neurospora. Also known as Monilia. Its asexual stage belongs to the order Moniliales, family Sphaeriaceae; its sexual stage is an ascomycete. The species harmful to mushrooms are Neurospora crassa and Neurospora sitophila. The hyphae are white, loose, branched and septate. The conidiophores branch in a dichotomous manner. The conidia are produced in chains, spherical to oval, orange-red or pink. The perithecia are clustered or scattered, nearly spherical or oval. The asci are cylindrical, each containing 8 ascospores. Neurospora is widely distributed and can be spread through air, soil, decaying plants, grains, and so on. It occurs severely when the substrate is too wet and
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Causes of and Preventive Measures against Contaminant Infection in Northern Nameko Mushroom Cultivation
As the production volume of northern nameko mushrooms increases year by year, diseases have become severe, causing reduced yields in mild cases and total crop failure in severe cases. In fact, diseases of edible fungi are not incurable; as long as we understand their occurrence and development patterns and find effective control methods, the problem can be solved. Through years of cultivation practice, the author has identified the patterns of contaminant infection. The causes and preventive methods are presented below: 1. Late inoculation - starting inoculation only in April is too late, as the weather has already turned warm and is prone to contaminant infection. Inoculating in February-March is best, because edible fungus mycelium begins to germinate and grow at above 5°C, while molds only proliferate in large numbers above 15°C. Therefore, early inoculation should be arranged with low-temperature mycelium incubation to pass through the mold infection stage.
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Method for making shiitake mushroom (Lentinula edodes) spawn in plastic bags
The method for making spawn using 17 cm × 33 cm polypropylene plastic bags has already been described in the production of spawn for block cultivation. In recent years, substitute-material shiitake mushroom production has developed rapidly in northern China. Due to differences in climatic conditions and other factors, most northern regions adopt large-bag cultivation. Since large-bag cultivation also uses plastic bags as containers for spawn production, its operational precautions and technical key points are the same, but some specific operations differ. Large-bag cultivation uses low-pressure high-density polyethylene plastic tube bags, 0.5-0.6 mm thick and 22-25
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Detailed Explanation of Shiitake Mushroom Spawn Treatment and Cultivation Methods
Shiitake mother spawn and cultivation spawn should be stored in a cool, clean preservation room or a disinfected refrigerator, and inoculation should be carried out in a disinfected inoculation box or inoculation room. When culturing disease- and pest-free cultivation spawn, the culture site should be a disinfected dedicated shed or room, with the spawn farm isolated from the production field. The cultivation spawn substrate formula ratio is 98% cottonseed hulls, 8% wheat bran, 1% lime, 1% gypsum, 1% phosphate fertilizer, and an appropriate amount of water, with 110-130 jin of auxiliary materials added and mixed evenly. Put the prepared substrate into spawn bags and use atmospheric pressure sterilization at a temperature of 100°C
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Detailed Explanation of the Production and Application Technology of Shiitake Mushroom Capsule Spawn
At the end of the last century, Japan invented capsule spawn and applied it on a large scale to log-cultivated shiitake mushrooms. In 1999, this technology was introduced to our country. After years of research, the Qingyuan County Edible Fungi Research Center overcame the technical difficulties of applying capsule spawn to substitute-material-cultivated shiitake mushrooms and achieved domestic production. Because capsule spawn has the advantages of saving labor, saving effort and a high survival rate, it is very suitable for large-scale production. In the past two years, the amount used has doubled and redoubled, and tens of millions of bags have been promoted and applied so far. It is estimated that in a few years this technology will become common in our country.
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How to Identify the Quality of Edible Mushroom Spawn? Practical Tips Shared
Edible mushroom spawn, like the seeds of crop vegetables, is the internal factor and foundation for achieving high and stable yields. The quality of the spawn directly affects the yield of edible mushrooms and even determines the success or failure of cultivation. Therefore, identifying and assessing the quality of spawn is very important. 1. Look 1. Check whether there are abnormal spots or patches of red, yellow, black, green, etc. around or on the surface of the substrate in the spawn bottle (bag). If any of the above phenomena exist, it indicates that the spawn has been contaminated by foreign molds (except for varieties that produce pigments, such as shiitake and nameko),
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Edible fungus cultivation boosts forest land economy
To further boost agricultural efficiency and increase farmers' incomes, Jinghai County has vigorously developed a ten-thousand-mu forest land economy, actively promoting and implementing forest land breeding and forest land edible fungus cultivation projects, and effectively raising the level of agricultural development. Since the end of 2007, Nanzhuotou Village in Wangkou Town of the county has raised more than 500,000 yuan to plan and build a fungus stick factory. At present, the factory produces more than 10,000 fungus sticks per day, and 70,000 fungus sticks have completed steam high-temperature sterilization, inoculation and other work. More than 50 farming households in the village are already engaged in forest land edible fungus production, with an area of 200 mu. This single item alone
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What methods are there for identifying the quality of edible mushroom spawn?
Many edible mushroom growers often report that the use of poor-quality spawn leads to cultivation failure, yet they do not know how to tell good spawn from bad. For this reason, the author specifically introduces several simple methods for identifying good and poor edible mushroom spawn. 1. Oyster mushroom. Spawn with white, dense, thick mycelium, appearing cottony-woolly, and showing the phenomenon of climbing the bottle wall is good spawn. If spawn cultivated on sawdust is used, sawdust that has been decomposed takes on a light yellow color, and a small number of primordia appear, it is good spawn. If the mycelium is sparse or forms strands, the cottonseed hull substrate turns dark red, the
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Detailed Explanation of the Technical Regulations for the Production of Edible Mushroom Spawn
Edible mushroom spawn refers to the pure mycelium of edible mushrooms cultivated artificially, usually divided into mother spawn, stock spawn and planting spawn. Mother spawn is pure mycelium that has been rigorously screened and confirmed to be of value in production. Mother spawn is cultured on test-tube slant medium, also known as tube spawn or first-level spawn. The spawn obtained by further propagating and transferring the mother spawn onto sawdust or grain medium is called stock spawn or second-level spawn, and the culture containers are mostly cans or spawn bottles. The spawn further propagated from the stock spawn is called planting spawn or third-level spawn, which can be used directly for production cultivation. I. Mother spawn preparation method 1. Prepare the mother
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How Do You Assess the Quality of Edible Mushroom Spawn? Practical Methods to Help You Tell Good from Poor
The quality of edible mushroom spawn directly affects the success or failure of production and the level of yield. Therefore, assessing the quality of edible mushroom spawn is crucial for growers. 1. Direct visual observation and assessment. In appearance, if the mycelium is dense white, thick and strong, and elastic, it has strong vitality; if the spawn mycelium has shrunk, is dry and lacking in color, or the mycelium has autolyzed and produced a large amount of reddish-brown liquid, then its vitality has already weakened and it should no longer be used; if wood-block spawn remains hard and solid, it is spawn with strong vitality, but if the wood blocks have become softened and loose, then it has aged and is not
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