2021-06-02
Although laboratory work had shown that liquid spawn could greatly increase mushroom yields, the original article identifies Dalian as an early location where the technique matured for large-scale production.
The archived report states that a production base established in June 2006 built over 20 incubation houses, produced over five million bags annually and helped more than 700 local households adopt liquid spawn. It reports 7,500 tonnes of mushrooms and over RMB 20 million in annual grower income, with the technique assessed as nationally advanced at that time.
The article describes Dalian's climate as permitting one spring and one autumn crop traditionally. Reducing solid-spawn preparation from 60–70 days to 3–5 days with liquid spawn could save two months per crop and permit four annual crops.
The article compares solid spawn, transferred through three generations over more than two months, with computer-controlled liquid fermentation that provides nutrients, oxygen and temperature conditions to prepare spawn for direct inoculation in 3–5 days.
At the time of the archived report, liquid spawn had been developed for 17 of 26 common mushroom groups. The report describes shorter cultivation cycles, fewer opportunities for pests and diseases, low contamination and a 10–20% increase in yield per crop.
Hubei Changyin Edible Fungi Machinery Co., Ltd. supplies bag filling machines, clipping machines, dryers and other mushroom equipment to customers across China, supported by after-sales service.