condition mean min max 12pM Fe,Midday 54.145 54.145 54.145 12pM Fe,Midnight 52.35095 51.9221 52.7798 58pM Fe,Midday 42.1142 42.1142 42.1142 58pM Fe,Midnight 43.3879 41.038 50.4625 233pM Fe,Midnight 34.57576666666667 34.0138 35.3117 1160pM Fe,Midday 27.9523 27.0787 28.7367 1160pM Fe,Midnight 33.60024166666667 31.8702 35.8123 High carbon,Dark 21.663436 4.6283 38.5099 High carbon,Light 13.873676307692309 0.227578 21.3461 Low carbon,Dark 16.1139 16.1139 16.1139 Phloroglucinol 20.027533333333334 18.413 22.2441 Silicon starvation,12h 11.5035 11.5035 11.5035