In order to improve the renewable energy supply chain model of the residual medium in the mushroom buns, the water content of the medium can be reduced to 64% through the preliminary treatment of the residual medium in the mushroom bag. Using this as a raw material for rapid resource processing, the finished product (Figure 1) has a loose texture, dull color and no offensive odor, which is not much different from the commercial peat soil in appearance, and has high market acceptance potential. Pre-tests were carried out to replace the cabbage seedling medium in different proportions, and there was no significant difference in the growth status of the stage (Figure 2). The development of multiple intermediate products to replace the seedling medium increased cope of application, improved market competitiveness and expanded the reduce waste capacity.

▲Fig.1. Appearance comparison of the commercially available seedling medium (right) and the finished product after rapid treatment of mushroom bag residual medium (left).

▲Fig.2. Substitute cabbage seedling medium with different proportions of mushroom bag medium (8 days after sowing).