Figure 4

Bacterial species composition of returned straw. (a) indicates different treatments of straw-degrading bacteria for returning to the field; (b) indicates different straw-degrading bacteria for returning to the field at different times.

Bacterial species composition of returned straw. (a) indicates different treatments of straw-degrading bacteria for returning to the field; (b) indicates different straw-degrading bacteria for returning to the field at different times.