Topdressing skills of Edible Fungi during mushroom production

1. Adding methods there are usually three methods for adding nutrient solution: spraying, soaking and hole filling. The suitable time for spraying nutrient solution is when a large number of fruiting bodies appear. When spraying, we should pay attention to the sprinkler not facing the fruit body, but also pay attention to the "four do not spray": 1. Young mushroom buds should not be sprayed so as not to "swell to death". two。 Just picked mushrooms or mushroom remains do not spray, so as not to cause bacterial diseases. 3. Do not spray when the air humidity is too high. 4. Do not spray when the diseases and insect pests are serious in the mushroom shed.

The soaking method is mainly used for bag-planted edible fungi. After harvest, if the cultivation bag is seriously short of water, it can be soaked in the prepared nutrient solution until it is restored or close to the original weight.

The method of irrigation is mainly used on the bacterial bed, which can be used when there are more mushrooms in the bacterial bed and excessive consumption of water and nutrients. The specific method is: punch the bacteria bed according to the hole distance of 10 centimeters, flood the prepared nutrient solution to the bacteria bed, and cover the soil after adding the nutrient solution.

Second, when the concentration of nutrient solution is too high, it is not only difficult to absorb the hyphae, but also hinder or even damage the hyphae. When the concentration is too low, the goal of high yield can not be achieved. If the water content of the culture material is high, the concentration should be increased, and the ventilation rate should be increased after adding the nutrient solution. On the contrary, the concentration of nutrient solution should be reduced and the water consumption should be increased. The commonly used concentration of nutrient solution is: urea 0.3%-0.5%, potassium dihydrogen phosphate 0.2%, etc., we must grasp the principle of "less but diligent".

Third, the comprehensive nutrition should often use several kinds of nutrient solution alternately, so that the nutrition obtained by the entity is comprehensive and reasonable. If hormones are used to stimulate the growth of edible fungi, they should be used after replenishing the nutrient solution.

4. Environmental change when the temperature is above 20 ℃, except for the varieties of high-temperature edible fungi, the nutrient solution may not be added. If the culture material has been contaminated by miscellaneous bacteria, be sure to remove the miscellaneous bacteria before adding the nutrient solution. In order to prevent miscellaneous bacteria pollution, we can also add a certain amount of bacteriostatic agents while adding nutrient solution to prevent the growth and spread of miscellaneous bacteria.