Effects of herbicides on yield of Morchella

One of the problems in the cultivation of Morchella is that the grass is relatively lush. When there is too much grass, it will obviously affect the growth and development of Morchella. In addition to the uncontrollable dry and wet environment for the growth of morel mushrooms, the hazards of lush green grass will also cause the morel mushroom stalks to be longer and the mushroom quality to decline due to poor ventilation. In addition, a lot of green grass creates a humid environment. There are a large number of slugs or snails hidden in the green grass, which nibble on the morels unknowingly. Therefore, fields with strong weeds tend not to have high yields. 
The easiest way to think of weeding is herbicides, and whether the relationship between herbicides and morel production is harmful is a question that many people are concerned about. Here is a brief explanation based on production experience:
First of all, there is no research data on the effect of herbicide concentration and herbicide spraying time on the growth or yield of Morchella and pesticide residues in mushrooms. Here are only some suggestions.
1. During the fruiting process, any pesticide spraying is prohibited, including herbicides of course. After the pesticide is sprayed on the morel mushrooms, it will be quickly absorbed by the surface of the mushrooms, and some of the pesticides will cause cell damage and cause the mushrooms to deform. The belly mushrooms cannot metabolize the sprayed pesticides at all, and the sprayed pesticides must be left on the morels, which are dangerous whether they are eaten by themselves or circulated. After all, the people who grow mushrooms and their families have to eat some of them first. For the health of you and your family, and for the sustainable development of the morel industry, it is forbidden to spray any pesticides during the fruiting process.
2. There is no other way except artificial weeding for the lush weeds at the time of fruiting. However, the weeds at this time must be caused by improper handling in the early stage. We can control and reduce the harm of weeds from the source. If the land is ploughed in advance before sowing, and through 2-3 ploughing, the harm of weeds can be greatly reduced; In addition, after sowing, use black mulch to cover the sun, which can well control the growth of weeds. The use of plastic film is emphasized here. The film coating technology in the cultivation of Morchella is a very economical technology. In terms of weeding, rain protection, heat preservation, and moisturizing, it is recommended to use plastic film for any key point. The total cost of using the device is not more than 100 yuan, and the cost can be recovered if one function point is useful.
3. Before sowing, there are too many weeds in the field, and herbicides can be used rationally. The requirement is to spray more than 1 month before sowing; after more than a month of exhaustion, the herbicide has lost its efficacy, and it has no serious effect on Morchella; when spraying, according to the herbicide instructions, spray with the lowest concentration You can apply.
4. Finally, I expect the scientific research department to follow up the research on the relationship between herbicides and Morchella. The feasible research plans include: the relationship between herbicide type, spraying time, and application concentration on the growth rate, bacteria growth and yield of Morchella; The relationship between use time and type of herbicides and pesticide residues in morel mushrooms.