condition mean min max 12pM Fe,Midday 47.5046 47.5046 47.5046 12pM Fe,Midnight 40.604 39.1626 42.0454 58pM Fe,Midday 36.7359 36.7359 36.7359 58pM Fe,Midnight 24.635157142857143 0.0 34.2421 233pM Fe,Midnight 21.2192 19.8794 22.209 1160pM Fe,Midday 35.279114285714286 33.3193 37.8627 1160pM Fe,Midnight 11.6344 9.6095 14.3271 High carbon,Dark 30.724813333333334 16.3204 55.4106 High carbon,Light 35.59400769230769 4.6666 81.7702 Low carbon,Dark 13.6223 13.6223 13.6223 Phloroglucinol 24.984066666666667 17.9273 29.0106 Silicon starvation,12h 33.5398 33.5398 33.5398