In the late stage of edible mushrooms, in order to enhance the stamina, mushroom farmers often use various means to add nutrient solution for top dressing. However, it can only be achieved if it is added in the correct way. On the contrary, if the seedlings are encouraged, they will be counterproductive and cause losses to the producers. First, we must pay attention to the method of adding nutrient solution is usually added in three ways: spray, soaking and cavitation. The time of spraying the nutrient solution is suitable when a large number of fruit bodies are present. Spray should pay attention to the nozzle is not facing the fruiting body, while paying attention to the "four does not spray": 1. Young mushroom buds do not spray, so as not to "swollen." 2. If you have just taken a mushroom or mushroom residue, do not spray it so as not to cause bacterial disease. 3. Do not spray when the air humidity is too high. 4. Mushroom (house) is not sprayed when serious pests and diseases, soaking method is mainly used for pouches of edible fungi. After harvesting 1-2 oyster mushrooms, if the cultivation bag is in a state of severe water shortage, it can be soaked in a well-matched nutrient solution until it returns to its original weight. The use of soaking method to add nutrient solution, just in the nutrient solution pool into the bag after the weight can be pressed, but the soaking time should not be too long, if the bacteria bag too much water loss can be divided into several soaking. The method of irrigating acupuncture points is mainly used on the bed of bacteria. This method can be used when the mushroom bed has many mushrooms and the consumption of water and nutrients is too large. The specific method is as follows: The bacteria bed is drilled at a distance of 10 cm, and the prepared nutrient solution is flooded into the bacteria bed, and the soil is added after the nutrient solution is added. Second, the concentration of the nutrient solution concentration is too high, not only the absorption of mycelium is difficult, but also impede or even damage the mycelium; concentration is too low, the effect is not obvious, can not reach the purpose of high yield. At the appropriate concentration, the nutrient solution should be added according to the moisture content of the culture material: If the culture material has a high moisture content, the concentration of the nutrient solution should be increased to reduce the amount of water, and the ventilation volume should be increased after the addition. Conversely, the concentration of nutrient solution should be reduced to increase the amount of water used. The commonly used potassium dihydrogen phosphate 0.2%, etc., we must grasp the "less and diligent" principle. Third, nutrient solution nutrient should be used in an all-round manner should often use several kinds of nutrient solution, so that the nutrients required for growth of fruiting bodies is comprehensive and reasonable. If hormones are used to stimulate the growth of mushrooms: they should be used after supplementing the nutrient solution. Fourth, pay attention to changes in the environment When the temperature reaches 20 °C above, the mycelium is difficult to form a good fruiting body. In addition to high-temperature edible mushroom species, no nutrient solution may be added. If the culture material has been contaminated with bacteria, be sure to remove the bacteria before adding nutrient solution. In order to prevent bacterial contamination, a certain amount of bacteriostatic agent may also be added at the same time as the nutrient solution is added to prevent the growth of germs.
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