Cultivation and management measures of Polyporus umbellatus

(1) temperature management:

Polyporus umbellatus, as a kind of fungus, has a parasitic and antiparasitic relationship with Armillaria mellea, which basically determines that their habits are similar. in general, when the temperature is above 12 ℃, they begin to germinate, and when they reach 14 ℃, Polyporus umbellata begins to swell and grow, and Armillaria mellea can enter the normal growth and metabolism stage. After that, with the increase of temperature, if the temperature reached more than 26 ℃, their growth was inhibited, and when they reached 30 ℃, they entered high temperature dormancy. According to this characteristic, reasonable regulation can be carried out, such as proper watering, shading and so on.

Practice shows that shading and cooling plays an excellent role in promoting the growth of Polyporus umbellatus, so it must be in the shade when selecting cultivation sites in the field, but even on barren mountains or bare land, shading can also be done by building shade sheds, planting long vine plants and so on. In a word, there are many methods, as long as the temperature in the soil layer of Polyporus umbellatus is controlled below 28 ℃ according to the specific conditions, it can meet its growth needs, which is summer management. In winter and spring, proper mulching of grass, firewood and straw, or covering plastic film on the cultivation ditch should be adopted to increase the temperature. The purpose is to increase the temperature and heat preservation. As long as the soil layer is kept above 12 ℃, Polyporus umbellatus can grow slowly. Be careful not to lower the temperature below 8 ℃ (20 degrees below zero) so as to maximize the growth time of Polyporus umbellatus. (2) Water management:

Ling species or bacteria will inevitably be hit and rubbed by some external forces in the transportation operation, causing them to sow seeds with injuries. under normal conditions, it takes about 5 days for wound healing, so do not use water immediately after sowing. It can only be watered after about a week. Since then, according to the soil quality and climatic conditions, the sand will be watered once every 7 to 10 days to make the sand moist; the moisture content of sand is generally between 30% and 40%. Pay attention to if there is hot and dry wind or severe drought at the turn of spring and summer, the watering frequency should be increased and water should be irrigated at least once a month, otherwise the growth of Armillaria mellea cords will be slow, vigor will decrease or die due to excessive drying. (3) Protection management: first, shading management. The main function of shading is to cool down, and the other is to prevent excessive evaporation of water, such as indoor cultivation, there is no shading problem. However, shading measures must be taken in the cultivation of hillside, orchard and flat land. the main methods are as follows: shading by original trees, planting long-trailing plants, shading by straw, weeds, planting turf, covering straw and firewood directly on the cultivation ditch. Second, water storage and drainage. When Polyporus umbellatus is cultivated in the field, especially on the hillside, the downstream direction of the cultivation pit (ditch) should be slightly higher in spring drought, in order to preserve and utilize water, but when Rain Water is frequent and the rainfall is heavy in the flood season, the cultivation pit should be slightly higher to avoid water storage. Third, the growth process of Polyporus umbellatus is the expansion process of its sclerotia, which requires corresponding soil ventilation. Therefore, it is necessary to prevent human and animal trampling, especially large livestock trampling, which will cause the cultivation pit to be trampled and sink, which not only destroys the growth microenvironment of Polyporus umbellatus, but also makes the lower concave water.

(4) ventilation management:

The management is mainly aimed at places such as basements and air-raid shelters, the biggest deficiency of which is poor ventilation, high humidity and stability, so it should be ventilated regularly, especially in the summer season of high temperature and humidity. Ventilation can not only eliminate carbon dioxide and other exhaust gases, but also reduce its humidity, so as to create a good condition for the growth of Polyporus umbellatus.