1 Select the appropriate method of addition. There are usually three ways to add nutrient solution: spraying, soaking and filling. The time for spraying the nutrient solution is preferably when a large number of fruiting bodies are present. When spraying, please pay attention to the nozzle not facing the fruiting body, and pay attention to the "four no spray": the young mushroom buds are not sprayed, so as not to be "swelled": just picking mushrooms or having no mushroom residue, so as not to cause Bacterial diseases; do not spray when the air humidity is too high; do not spray when the pests and diseases in the mushroom shed (room) are serious. The soaking method is mainly used for edible fungi in bagged plants. After harvesting 1~2 of the mushroom, if the cultivation bag is in a serious water shortage state, it can be soaked in the prepared nutrient solution until it recovers to near the original weight. The nutrient solution is added by a soaking method, and the bag is generally placed in a nutrient solution tank and pressed against a heavy object. And the time of soaking should not be too long. If the bag loses too much water, it can be soaked several times. The method of filling the hole is mainly used on the bed of bacteria. This method can be used when the mushroom bed has more mushrooms and the water and nutrient consumption is too large. The specific method is as follows: the bacteria bed is drilled at a hole distance of 10 cm, and the prepared nutrient solution is filled into the bacteria bed, and the nutrient solution is added to cover the soil.
2 The concentration should be appropriate. When the concentration of nutrient solution is too high, not only the absorption of hyphae is difficult, but also the growth of hyphae is hindered or even impaired; when the concentration is too low, the purpose of high yield is not achieved. When the nutrient solution is added at a suitable concentration, it depends on the water content of the culture material: if the water content of the culture material is high, the concentration of the nutrient solution should be increased, the water consumption should be reduced, and the ventilation amount should be increased after the addition; The concentration of nutrient solution should be reduced and the water consumption should be increased.
3 nutrient solution should be comprehensive. Several nutrient solutions should be used interchangeably, so that the nutrients needed for the growth of fruiting bodies are comprehensive and reasonable. If hormones are used to stimulate the growth of edible fungi, they should be used after supplementing the nutrient solution.
4 Pay attention to changes in the environment. When the temperature reaches 20 ° C or above, the hyphae are difficult to form a high-quality fruit body, and the nutrient solution may not be added except for the high-temperature edible mushroom species. If the culture material has been contaminated with bacteria, it is necessary to remove the bacteria before adding the nutrient solution. In order to prevent contamination of the bacteria, a certain amount of bacteriostatic agent can also be added at the same time as the nutrient solution is added to prevent the growth of the bacteria.
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