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Table 3 The colloidal P content (mg kg−1) of different-sized soil aggregates and the contribution rate of aggregates to colloidal P (CR) in the total 15 soils

From: Enhanced soil aggregate stability limits colloidal phosphorus loss potentials in agricultural systems

 Size of aggregates (mm)S1S2S3S4S5S6S7S8S9S10S11S12S13S14S15
Colloidal P2–814.04a1.25b2.05d11.35a2.28d3.00a6.10a11.01b9.87c1.48b1.78c1.00d5.89c10.24b16.35a
0.26–215.55a1.55a7.22a11.33a6.25a2.2b8.98a17.11a23.63ab1.27bc3.85b2.87b5.31c12.70a12.50b
0.053–0.266.88b1.78a7.10a9.07b4.48c2.14c8.82b11.21b22.68b3.45a1.57c2.11c17.83a13.8a10.17c
< 0.0531.67c0.86c5.27b5.55c5.60b3.45a3.58c5.55c12.3c1.00c7.60a4.50a7.69b10.22ab15.24a
CRi2–84.46c2.17c1.52d4.10c0.83c4.43d5.37b4.78d3.86d3.18d4.39b2.58d3.96c6.25d11.33a
0.26–210.75b11.72a7.03c11.02b5.05b5.88c10.29a12.30a5.39c4.51c6.18a5.64b4.51b7.61c5.51c
0.053–0.269.47b12.86a10.27b10.17b14.37a7.98b9.66a7.41c10.38a5.82b2.04c4.17c9.34a9.81b2.69d
< 0.05326.14a11.28a15.92a20.79a15.06a19.87a4.43b9.11b9.21a8.04a4.07b8.80a8.32a10.37a7.11b
  1. Letters in different-sized aggregates indicated significant difference at P < 0.05 level