Figure 1

13C NMR graphs of five types of compost. (A: chicken manure, B: cattle manure, C: pig manure, D: soybean manure, E: lemon peel compost).
13C NMR graphs of five types of compost. (A: chicken manure, B: cattle manure, C: pig manure, D: soybean manure, E: lemon peel compost).