Fig. 1.

Fig. 1. Effects of different short-term tillage treatments on rhizosphere soil EEA in double-cropping rice field. RT: rotary tillage with crop straw input; CT: conventional tillage with crop straw input; NT: no-tillage with crop straw returning; RTO: rotary tillage with all crop straws removed as a control. (A) was soil urease; (B) was soil protease; (C) was soil β-glucosaminidase; (D) was soil arginase. Different lowercase letters indicated significant differences at p < 0.05 among different tillage treatments. Values were presented as mean ± SE.

© J. Microbiol. Biotechnol.