Table 1 Comparison of different tillage rotation treatments on aggregate stability index.

From: Tillage effects on soil properties and crop yield after land reclamation

Method

Treatments

MWD (mm)

GMD (mm)

D

R0.25 (%)

Dry-sieving

NT

4.04 ± 0.11b

3.41 ± 0.14b

2.19 ± 0.09a

97.8 ± 0.06b

ST

4.29 ± 0.06a

3.82 ± 0.07a

2.02 ± 0.09b

98.4 ± 0.12a

CT

3.84 ± 0.09c

3.14 ± 0.11c

2.33 ± 0.05a

97.2 ± 0.41c

Wet-sieving

NT

0.40 ± 0.02a

0.34 ± 0.01a

2.93 ± 0.01b

34.1 ± 4.75a

ST

0.37 ± 0.01ab

0.32 ± 0.01ab

2.96 ± 0.01ab

29.3 ± 3.04b

CT

0.34 ± 0.02b

0.30 ± 0.01b

2.97 ± 0.02a

22.9 ± 2.19c

  1. GMD geometric mean diameter, MWD mean weight diameter, D fractal dimension, R0.25 > 0.25 mm aggregates, CT continuous conventional moldboard-tillage, NT no-tillage/sub-soiling/no-tillage, ST sub-soiling/moldboard-tillage/sub-soiling tillage.
  2. Different lowercase letters represent significant differences between different tillage treatments in the same aggregate determination method.
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