Causes of hollow mushrooms with thin caps in button mushrooms and preventive measures

During the cultivation of button mushrooms (Agaricus bisporus), thin-capped and hollow mushrooms often appear. This phenomenon not only lowers the quality of button mushrooms but also seriously affects the economic returns of mushroom growers. Therefore, great care must be taken in cultivation management. So how can hollow mushrooms with thin caps be prevented? Follow along with the editor to learn more.

I. Causes of hollow mushrooms with thin caps in button mushrooms

1. Temperature on the high side

The appearance of thin-capped mushrooms in button mushrooms is mainly related to excessively high temperature. Too high a temperature causes the fruiting bodies to grow rapidly, and combined with high planting density, the nutrient supply becomes insufficient.

2. Variety characteristics

In addition, the appearance of thin-capped mushrooms is also related to variety characteristics. Appressed-type varieties mostly fruit densely and are prone to producing thin-capped mushrooms, with low yield and poor quality; whereas aerial-type varieties, when the compost and casing soil layer are too thin, combined with little and light watering, cause insufficient nutrient and water supply, and thin-capped mushrooms also appear.

3. Improper watering

During the water adjustment period after casing, because watering is light, the number of waterings is high, and water adjustment is fast, combined with little ventilation in the mushroom house, the air humidity inside the mushroom house becomes relatively high, the mycelium grows too high up, and the fruiting bodies grow directly on the surface of the fine soil. With the base positioned forward, thin-capped mushrooms are produced.

4. Improper water management

The appearance of hollow mushrooms in button mushrooms is caused by improper water management during the fruiting period. During the fruiting period of button mushrooms, if the air humidity is low, the mushroom bodies evaporate water quickly, and in addition the soil surface is watered little and the water layer is too dry, the fruiting bodies cannot get enough water for growth. At this point the stipes develop a white, loose pith, and hollow mushrooms even appear.

II. Preventive measures

Targeted preventive measures should be taken against the causes of hollow mushrooms with thin caps in button mushrooms. During the fruiting body formation period, the temperature should be kept suitable, neither too high nor too low, and attention should be paid to planting density to ensure an adequate nutrient supply. During the water adjustment period, proper ventilation should be maintained so that the fruiting site is between the coarse soil and fine soil layers; this can reduce thin-capped mushrooms. At the same time, appropriately increasing the thickness of the compost and soil layer and strengthening water management during the fruiting period can also prevent the appearance of thin-capped mushrooms. During the fruiting period, strengthen water management and, at the proper time, pause watering and apply a heavy watering, so that the soil layer does not become too dry; at the same time, the coarse soil particles can also get water and maintain a certain humidity, so that the rapidly growing fruiting bodies can obtain sufficient water and the appearance of hollow mushrooms can be prevented.

The above is an introduction to the causes of hollow mushrooms with thin caps in button mushrooms and preventive measures. We hope it helps you. To learn more related knowledge, please stay tuned to us.