Table 1 Selected properties of soils22 used in irrigation experiments (pv, pore volume; SOC, soil organic carbon). The subscripts index element extraction by dithionite-citrate-bicarbonate (DCB), oxalate (Ox), and citrate (C). Two pore volumes are given for Sample P4 because of varying thickness of the mineral horizon between the two replicates.
Soil type | Mineral horizon | Thickness (cm) | pv (mL) | pH (CaCl2) | Sand (g kg−1) | Silt (g kg−1) | Clay (g kg−1) | SOC (g kg−1) | FeDCB (mg kg−1) | FeOx (mg kg−1) | FeC (mg kg−1) | AlOx (mg kg−1) | AlC (mg kg−1) | SiOx (mg kg−1) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Dystric Arenosol; P1 | AE | 8 | 420 | 2.7 | 980 | 18.4 | 1.6 | 93.9 | 4725 | 2150 | 2165 | 940 | 945 | 23 |
Dystric Brunic Arenosol; P2 | AE | 8 | 419 | 2.7 | 996 | 3.5 | 0.5 | 52.9 | 3817 | 820 | 850 | 273 | 310 | 13 |
Dystric Brunic Arenosol; P3 | AE | 8 | 429 | 3.0 | 997 | 2.7 | 0.3 | 27.3 | 3815 | 983 | 1075 | 260 | 290 | < 3 |
Dystric Brunic Arenosol; P4 | AE | 12 10 | 643 536 | 2.9 | 997 | 2.5 | 0.5 | 24.9 | 3845 | 1155 | 1015 | 340 | 330 | 3 |
Albic Podzol (Arenic); P5 | EA | 10 | 519 | 2.9 | 995 | 2.0 | 3.0 | 17.8 | 219 | 188 | 210 | 140 | 145 | < 3 |
