Table 3 Calcium content of Stage 3 measured by ICP
Sample | Calcium content/% |
|---|---|
S4: covering soil of 2 stubble mushrooms | 4.48 |
S5: covering soil of 3 stubble mushrooms | 3.16 |
S6: waste soil | 3.75 |
C4: compost of 2 stubble mushrooms | 4.32 |
C5: compost of 3 stubble mushrooms | 4.33 |
C6: waste compost | 5.79 |