Effects of Herbicides on the Microbial Community and Urease Activity in the Rhizosphere Soil of Maize at Maturity Stage
Table 4
Effects of herbicides on the alpha diversity of fungi in the rhizosphere soil of maize.
Soil layer (cm)
Treatment
Shannon
ACE
Chao 1
Measured value
△CK (%)
Measured value
△CK (%)
Measured value
△CK (%)
0-20
CK
4.1
—
2952.8
—
2328.9
—
A0
5.6
38.1
3190.9
8.1
2572.6
10.5
A1
5.6
36.7
2978.8
0.9
2589.3
11.2
A2
4.9
21.0
3043.3
3.1
2303.8
-1.1
A3
5.7
39.9
3987.5
35.0
3026.1
29.9
A4
5.4
31.8
3488.6
18.1
2825.7
21.3
20-40
CK
4.8
—
3373.7
—
2575.8
—
A0
5.2
10.2
4479.9
32.8
3343.4
29.8
A1
5.1
7.2
3495.0
3.6
2760.6
7.2
A2
5.4
13.2
3637.7
7.8
2679.6
4.0
A3
5.4
13.6
3261.7
-3.3
2707.8
5.1
A4
4.8
1.1
3019.6
-10.5
2463.6
-4.4
40-60
CK
5.2
—
2584.1
—
2181.4
—
A0
5.3
1.9
3621.1
40.1
2647.5
21.4
A1
5.3
2.9
4189.2
62.1
2806.1
28.6
A2
4.5
-12.5
2337.6
-9.5
1843.0
-15.5
A3
5.4
3.7
3508.7
35.8
2670.5
22.4
A4
5.3
1.7
3522.1
36.3
2875.7
31.8
Note: CK, the no herbicide negative control; A0, a preemergence nonspecific herbicide for maize, dinitraniline (the active control); A1-A4: four preemergence maize specific herbicides, nicosulfuron+atrazine, alachlor+acetochlor+atrazine, propisochlor+atrazine, and acetochlor+atrazine, respectively.
