Bench height (m) | Horizon | Total Pt | KCl Pi | NaHCO3 Pi | NaHCO3 Po | NaOH Pi | NaOH Po | HCl Pi | Sum of extracts | Residual P | Overall Pi% | Overall Po% |
---|---|---|---|---|---|---|---|---|---|---|---|---|
15 | A | 564 | 3.20 | 12.6 | 79 | 9.16 | 225 | 120 | 449 | 75 | 32.3 | 67.7 |
 | C1 | 477 | 2.11 | 9.15 | 84 | 6.28 | 163 | 125 | 390 | 285 | 36.6 | 63.4 |
 | C2 | 471 | 1.80 | 9.80 | 81 | 5.30 | 145 | 127 | 370 | 235 | 38.9 | 61.1 |
 | C3 | 213 | 0.85 | 4.44 | 82 | 3.71 | 142 | 123 | 356 | 65 | 37.1 | 62.9 |
20 | A | 783 | 1.43 | 24.4 | 133 | 138 | 489 | 129 | 915 | 424 | 32.0 | 68.0 |
 | Bw | 296 | 0.65 | 4.74 | 63 | 92 | 292 | 19.4 | 42 | 107 | 24.9 | 75.1 |
 | BC | 113 | 0.63 | 3.94 | 53 | 35 | 121 | 21.0 | 235 | 60.0 | 25.8 | 74.2 |
 | C | 322 | 0.61 | 4.05 | 67 | 28 | 111 | 284 | 555 | 75.0 | 67.9 | 32.1 |
50 | A | 536 | 0.68 | 11.7 | 86 | 195 | 271 | 1.97 | 567 | 430 | 36.9 | 63.1 |
 | Bt1 | 475 | 0.35 | 5.65 | 97 | 145 | 257 | 2.31 | 507 | 381 | 30.2 | 69.8 |
 | 2 A | 427 | 0.39 | 4.00 | 98 | 142 | 285 | 1.50 | 531 | 312 | 27.9 | 72.1 |
 | 2Bt | 440 | 0.41 | 2.60 | 84 | 199 | 315 | 2.86 | 604 | 387 | 33.9 | 66.1 |
 | C | 1153 | 0.75 | 50.2 | 137 | 367 | 412 | 34.0 | 1001 | 934 | 45.2 | 54.8 |
90 | A | 209 | 0.70 | 6.56 | 98 | 48 | 150 | 2.01 | 306 | 183 | 18.9 | 81.1 |
 | BA | 221 | 0.36 | 3.62 | 68 | 39 | 136 | 2.13 | 248 | 164 | 18.1 | 81.9 |
 | Bt1 | 178 | 0.46 | 2.75 | 64 | 29 | 120 | 3.22 | 220 | 159 | 16.2 | 83.8 |
 | Bt2 | 187 | 0.36 | 2.60 | 64 | 28 | 102 | 3.90 | 201 | 155 | 17.4 | 82.6 |
 | BC | 156 | 0.49 | 3.35 | 61 | 28 | 59 | 3.39 | 156 | 142 | 22.8 | 77.2 |
100 | A | 458 | 0.65 | 6.36 | 79 | 64 | 170 | 3.51 | 324 | 309 | 23.2 | 76.8 |
 | AB | 441 | 0.68 | 5.18 | 53 | 47 | 120 | 6.70 | 233 | 342 | 25.6 | 74.4 |
 | Bt1 | 269 | 0.33 | 2.77 | 44 | 62 | 113 | 2.09 | 225 | 187 | 30.1 | 69.9 |
 | Bt2 | 228 | 0.34 | 2.69 | 64 | 50 | 97 | 3.91 | 217 | 216 | 26.4 | 73.6 |
 | BC | 202 | 0.35 | 3.01 | 58 | 31 | 59 | 5.54 | 157 | 169 | 25.4 | 74.6 |
170 | A | 320 | 0.42 | 19.5 | 36 | 83 | 188 | 5.25 | 332 | 292 | 32.5 | 67.5 |
 | Bt2 | 264 | 0.16 | 1.72 | 39 | 77 | 154 | 6.02 | 278 | 298 | 30.5 | 69.5 |
 | Bt2 | 287 | 0.27 | 1.92 | 39 | 85 | 151 | 6.59 | 284 | 314 | 33.0 | 67.0 |
 | Bt3 | 291 | 0.22 | 2.27 | 39 | 90 | 148 | 4.48 | 283 | 316 | 34.0 | 66.0 |
 | Bt4 | 314 | 0.02 | 2.40 | 38 | 88 | 177 | 5.30 | 310 | 387 | 30.9 | 69.1 |
 | C | 597 | 0.28 | 12.2 | 53 | 111 | 172 | 12.0 | 360 | 653 | 37.6 | 62.4 |
190 | A | 518 | 0.59 | 10.2 | 81 | 83 | 336 | 2.70 | 514 | 266 | 18.8 | 81.1 |
 | Bt1 | 342 | 0.48 | 1.90 | 58 | 44 | 201 | 3.90 | 309 | 231 | 16.4 | 83.8 |
 | Bt2 | 353 | 0.43 | 1.40 | 62 | 64 | 220 | 8.15 | 356 | 286 | 20.6 | 79.4 |
 | Bt3 | 362 | 0.60 | 1.45 | 60 | 77 | 213 | 7.40 | 359 | 283 | 24.1 | 75.9 |
240 | A | 577 | 0.56 | 36.0 | 74 | 119 | 288 | 3.95 | 522 | 377 | 31.0 | 69.0 |
 | Bt1 | 234 | 0.24 | 3.22 | 26 | 37 | 103 | 7.19 | 176 | 270 | 27.0 | 73.0 |
 | Bt2 | 212 | 0.24 | 3.87 | 52 | 25 | 81 | 5.10 | 167 | 262 | 20.5 | 79.5 |
 | BC | 138 | 0.24 | 2.46 | 54 | 27 | 69 | 6.61 | 164 | 229 | 22.4 | 76.0 |