Tabla 2.- Coeficientes de correlación Pearson y significación bilateral (Sig. bil.) entre el potasio y el % de CO3Ca, % de carbono orgánico (CO), % de nitrógeno (N), magnesio y sodio de cambio (Mg y Na), capacidad de intercambio catiónico (CIC), fósforo, pH, fracciones texturales y minerales de arcilla.
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| K-CO3Ca | r=-,539 | r=-,627 | r=-,636 | r=-,635 | r=-,471 | r=-,429 | r=,-539 |
| Sig.(bil.) | ,000 | ,000 | ,000 | ,000 | ,000 | ,000 | ,000 |
| K-CO | r=,432 | r=,528 | r=,485 | r=,313 | r=,387 | r=,186 | r=,304 |
| Sig.(bil.) | ,000 | ,000 | ,001 | ,043 | ,000 | ,121 | ,008 |
| K-N | r=,407 | r=,362 | r=,185 | r=,349 | r=,427 | r=,285 | r=,379 |
| Sig.(bil.) | ,000 | ,001 | ,247 | ,023 | ,000 | ,016 | ,001 |
| K-Ca | r=,261 | r=,215 | r=,189 | r=,349 | r=,427 | r=,285 | r=,379 |
| Sig.(bil.) | ,000 | ,051 | ,236 | ,092 | ,000 | ,007 | ,028 |
| K-Mg | r=,288 | r=,527 | r=,625 | r=,395 | r=,243 | r=,308 | r=,319 |
| Sig.(bil.) | ,000 | ,000 | ,000 | ,001 | ,030 | ,009 | ,006 |
| K-Na | r=,175 | r=,141 | r=,087 | r=,211 | r=,201 | r=,309 | r=,094 |
| Sig.(bil.) | ,008 | ,205 | ,590 | ,211 | ,015 | ,009 | ,426 |
| K-CIC | r=,362 | r=,345 | r=,356 | r=,361 | r=,383 | r=,388 | r=,376 |
| Sig.(bil.) | ,000 | ,001 | ,022 | ,019 | ,000 | ,001 | ,001 |
| K-Fósforo | r=,278 | r=,126 | r=,194 | r=-,075 | r=-,348 | r=-,478 | r=-,053 |
| Sig.(bil.) | ,000 | ,002 | ,224 | ,639 | ,000 | ,000 | ,652 |
| K-pH | r=-,330 | r=-,334 | r=-,256 | r=-,346 | r=-,343 | r=-,309 | r=-,382 |
| Sig.(bil.) | ,000 | ,256 | ,106 | ,025 | ,000 | ,009 | ,001 |
| K-arena | r=-,057 | r=-,126 | r=-,031 | r=-,147 | r=-,028 | r=-,037 | r=-,053 |
| Sig.(bil.) | ,390 | ,297 | ,849 | ,353 | ,741 | ,762 | ,654 |
| K-limo | r=-,071 | r=-,080 | r=-,095 | r=-,145 | r=-,066 | r=,009 | r=-,108 |
| Sig.(bil.) | ,284 | ,475 | ,556 | ,361 | ,429 | ,942 | ,359 |
| K-arcilla | r=,142 | r=,209 | r=,126 | r=,321 | r=,105 | r=,038 | r=,185 |
| Sig.(bil.) | ,032 | ,057 | ,431 | ,038 | ,206 | ,753 | ,114 |
| K-Calcita | r=-,029 | r=-,124 | r=-,174 | r=-,035 | r=,038 | r=,064 | r=-,015 |
| Sig.(bil.) | ,663 | ,265 | ,278 | ,827 | ,691 | ,596 | ,902 |
| K-Ilita | r=-,125 | r=-,100 | r=-,288 | r=,021 | r=-,160 | r=-,142 | r=-,198 |
| Sig.(bil.) | ,058 | ,369 | ,068 | ,897 | ,053 | ,236 | ,091 |
| K-Caoli. | r=,060 | r=,097 | r=,162 | r=,004 | r=,043 | r=-,042 | r=,117 |
| Sig.(bil.) | ,369 | ,382 | ,312 | ,981 | ,610 | ,731 | ,322 |
| K-Mont. | r=,121 | r=,108 | r=,102 | r=,141 | r=,141 | r=,164 | r=,142 |
| Sig.(bil.) | ,067 | ,331 | ,526 | ,372 | ,089 | ,172 | ,227 |