How to cultivate high quality Lentinus edodes?

How to cultivate high quality Lentinus edodes? Please advise that high-quality mushrooms with large umbrella diameter, thick meat and unopened umbrellas are the best of Lentinus edodes, which are exported to foreign countries after fresh-keeping processing. The price of this kind of mushrooms is often 3-4 times that of ordinary Lentinus edodes. Therefore, for Lentinus edodes producers, how to use scientific cultivation and management technology to produce more high-quality mushrooms is the key to obtain higher economic benefits. The temperature in Northeast China is relatively low, the temperature difference between day and night is large, and the nutrient accumulation is sufficient, which is conducive to the production of high quality Lentinus edodes. First, select the varieties of Lentinus edodes with medium and large leaves, low temperature and late maturity. Generally speaking, Lentinus edodes does not open the umbrella under the premise, the larger the umbrella diameter, the thicker the mushroom meat, the highest grade, the higher the price. On the other hand, some Lentinus edodes varieties with low temperature and late maturity have more complete lignin decomposition and sufficient nutrient accumulation, which is more conducive to the production of high-quality mushrooms. Lentinus edodes varieties such as 1363 and Zhongxiang 2 can be selected in production. Second, the sawdust of high-quality hard mixed tree species should be selected as the main material for cultivation. Such as oak, oak, Manchurian willow, maple and so on. Because of the dense texture and high lignin content of these hard trees, the mycelium of Lentinus edodes grows slowly, which is conducive to the accumulation of nutrients in the mycelium, dense meat, large mushrooms and thick meat. Third, there should be a reasonable ratio of carbon to nitrogen in the cultivation materials. The reasonable ratio of carbon to nitrogen in the mycelium stage of Lentinus edodes is 20-30:1. Because there is sufficient carbon and nitrogen deficiency in sawdust, reasonable nitrogen compounds, such as wheat bran and rice bran, must be added to the ingredients. The amount of nitrogen-containing compounds should be increased or decreased according to the characteristics of Lentinus edodes strains, the dosage of early-maturing high-temperature varieties was 15%, while that of late-maturing low-temperature varieties should be increased to 20%. Fourth, strictly control the water content of the culture medium. The ideal water content in the culture medium is 60%. In general, the medium is wet and the mycelium growth is stronger and the yield is higher than that in the dry case. No matter the mycelium stage or the fruiting body stage, the amount of water is very important. If there is not enough water in the culture medium, the mycelium grows weakly and slowly, and the nutrition accumulation is not enough. On the other hand, the water content in the culture medium is too large, the air permeability is not good, and the mycelium is anoxic, which is very disadvantageous to the emergence of good mushrooms in the later stage. Therefore, the water content in the culture medium must be controlled. Fifth, compacting the culture medium. When Lentinus edodes is cultivated in wood section, the hard quality of mushroom is good, because the material of wood section is dense. Whether it is bacterial column cultivation or ground bed cultivation, the more compacted the substrate, the better. Because the space in the substrate is small, the air is less, the mycelium grows slowly, the respiration is weak, and the nutrient consumption is small. When the mushroom is produced, it can ensure sufficient nutrition in the substrate, and the quality of Lentinus edodes is good and the yield is high. Sixth, control the temperature and humidity in the stage of mushroom production. The temperature in the stage of mushroom emergence affects not only the yield but also the quality of Lentinus edodes. Many edible mushroom producers think that the primordium is mushroom bud, which is wrong. The primordium is an unstructured mycelial mass formed by the kink of the mycelium at 8-20 ℃, while the mushroom bud is the young body of the mycelium which is stimulated by low temperature and differentiates into cap and stalk. The temperature at which the primordium was stimulated to form mushroom buds varied with different temperature types of Lentinus edodes. Therefore, once the mushroom bud is formed, it means that the mycelium of Lentinus edodes has reached physiological maturity and began to transform from vegetative growth to reproductive growth. The temperature of this period should be controlled at 8-15 ℃; the space humidity is 50-60%; and the light intensity is 300-800 lux. When using sawdust substitute to cultivate Lentinus edodes, even if the yield is slightly lower, we should try our best to create the cultivation raw materials and the most suitable environmental conditions for the growth of high-quality mushrooms, so that the mushroom buds can grow slowly under the condition of low temperature and dryness. the stalk is short, the meat is thick, and the tissue is dense, so that the producer can obtain higher economic benefits. Click to get more cultivation techniques of Lentinus edodes