Cultivation techniques of imitating Wild growth of Pleurotus ostreatus

In recent years, diseases occur frequently in the cultivation of Pleurotus ostreatus. This is mainly due to the fact that the whole production process is under the condition of protection from beginning to end, and the vitality and disease resistance of mycelium continue to decrease. Imitating wild cultivation technology can better solve this problem.

First, the preparation of base materials and the sending of bacteria in bacterial bags are carried out in accordance with the routine.

Second, standardize the code to build a bacterial wall. When the primordium is shown in individual bacterial bags, the bacterial wall can be built. The fungus wall is generally 0.8 meters wide and 15 meters long; the gap at one end of the mushroom column is strictly and smoothed with mud, and the other gaps are filled with fertile soil and watered to make it firm. The top of the fungus wall is covered with fertile soil about 8 cm thick, and a storage tank is built with a width of about 50 cm. The working path between the two bacterial walls is 1.5 meters wide for easy operation.

Third, set up a protective arch shed. After the fungus wall is built, an arch shed must be set up immediately to protect it, which is about 1.8 meters high. The method is as follows: one end of the bamboo piece is inserted into the edge of the storage tank at the top of the bacterial wall, and the other end is inserted into the edge of the storage tank of the adjacent bacterial wall, and the other end is covered with plastic film, that is, a small arch shed is built between the two adjacent bacterial walls, and the two ends are sealed with plastic film, one of which is provided with a valve to facilitate access. Points for attention: first, the arch sheet should be inserted deeply to make the arch shed firm; second, the cover used on the arch shed should be easy to uncover and cover the grass, such as in March and November, it should be covered strictly from April to May and August to October, and the grass should be thickened at high temperature to avoid excessive heating in the arch shed.

Fourth, management.

(1) Water management. First of all, we should keep a certain amount of moisture in the storage tank and make it seep slowly. The air humidity in the arch shed can generally be maintained at about 85%, and there is no need to spray water to humidify. However, when it is dry in spring, the air humidity in the shed is not easy to maintain, so in addition to strengthening the irrigation of the water storage trough, you can dig a water storage ditch about 15 cm wide on each side of the operation road in the arch shed in advance, and pour clear water into it, so that the water can slowly seep into the surface to maintain the humidity in the shed. In addition, when the external temperature is high, the mulch such as grass mulch is often sprayed with water, which can play an obvious cooling role.

(2) pest control. The prevention and control measures include: the bacterial column is completely buried in the soil, and the top is covered with soil 8 cm thick; the two ends of the bacterial wall should also be covered with 3 cm thick soil, and try not to dry it; the whole open-air bacterial wall is completely surrounded and covered with soil, so that pests have no hole to enter. When entering the shed for operation, you should observe whether there are pests entering the shed at any time. When pests are found in the initial stage, they should be sprayed immediately to kill them, killing the enemy, etc., leaving no future trouble.

(3) temperature management. First of all, the strain should be selected correctly. Secondly, thickening mulch, such as double-layer grass mulch, can effectively prevent the temperature exchange inside and outside the shed, so as to achieve the relative stability of the greenhouse temperature. When the temperature is on the low side in March and November, properly uncover the grass mulch to raise the greenhouse temperature; the air temperature in April and October is extremely beneficial to the growth of Pleurotus ostreatus, which can cover a layer of grass grass and let it grow naturally; when the temperature is on the high side, while thickening the mulch, spray water on the grass grass. Third, when the light is strong and the temperature is too high, a sunshade net can be built above the cultivation land to make the arch shed and fungus wall be in a half-yin and half-sun environment. In addition, on overcast, foggy and light rainy days, the greenhouse film can be removed and covered with only a layer of grass, so that the fruiting body is in wild conditions, so that its shape and color have the character of wild mushrooms.