Techniques of replenishing nutrition to edible fungi

In the process of cultivation of edible fungi, reasonable supplement of various nutrients is an effective measure to increase the yield of edible fungi. However, improper replenishment can also be counterproductive. Therefore, when adding nutrition to edible fungi, we should pay attention to the following skills:

First, pay attention to supplementary methods. The methods of supplying nutrition to edible fungi are spraying, perfusion and soaking. The most commonly used method is to prepare a certain concentration of nutrient solution, combined with supplementary water to spray on the bacterial bed and bacterial block. When spraying in the bud stage, pay attention to spray the nutrient solution in the place where there is no mushroom or near the small mushroom bud, and wash the fruiting body with clean water after spraying. Spraying nutrient solution is best carried out at low tide. The mushroom block and Linden wood can also be supplemented by soaking, that is, it can be taken out after being absorbed in the prepared nutrient solution, generally after the harvest of each tide mushroom. The filling method can also be used on the bacterial bed, that is, the covering soil on the bacterial bed is removed, the funnel is inserted into the culture material, and then covered with nutrient solution. In general, the distance of the infusion point is about 10 cm, and each point is about 5 ml.

Second, different nutrient solutions should be replenished alternately. For example, glucose solution is carbon nutrition, urea is nitrogen nutrition, potassium dihydrogen phosphate is phosphorus and potassium nutrition, as well as other trace elements and organic nutrients. If one of these nutrients is used for a long time, it is difficult to achieve the desired effect. Therefore, all kinds of nutrient solutions must be supplemented alternately to meet the requirements of edible fungi for different nutrients. On the mushroom bed, the nutrient solution with added nutrients should be applied first, and then the highly efficient nutrient agent should be applied, which is beneficial to the growth of fruiting body. If the hormone method is used to stimulate the growth of edible fungi, hormones should be used after supplements.

Third, the amount of nutrient solution should be appropriate. If excessive supplement at one time, the culture material will be too wet, on the contrary, it will be extremely disadvantageous to the growth of mycelia. therefore, when replenishing, we should look at the appropriate application of the humidity of the cultivation material, if the humidity of the medium is high, we should appropriately increase the concentration of the nutrient solution and reduce the amount of water added. After application, it is necessary to increase ventilation to dissipate moisture.

Fourth, apply organic fertilizer correctly. The raw materials for composting juice shall not contain miscellaneous bacteria and eggs. The compost and feces used should be fermented or cooked and sterilized. The application of soybean milk, potatoes and other plant extracts should be used now, not for a long time, in order to prevent rancidity.

Fifth, pay attention to the influence of the environment. Generally speaking, when the temperature is higher than 20 ℃, mushroom hyphae are difficult to form fruiting bodies, so rehydration should be stopped. Glucose solution, soybean milk, human feces and urine should not be applied when the temperature is above 18 ℃. If the bacterial bed (block) has been infected with miscellaneous bacteria, it must be cured before rehydration.