condition mean min max 12pM Fe,Midday 50.0176 50.0176 50.0176 12pM Fe,Midnight 47.14085 45.3657 48.916 58pM Fe,Midday 43.9648 43.9648 43.9648 58pM Fe,Midnight 31.806785714285713 0.0 39.2264 233pM Fe,Midnight 22.75486666666667 21.2523 23.805 1160pM Fe,Midday 20.824014285714288 18.8232 22.6487 1160pM Fe,Midnight 31.709633333333333 14.9993 43.5409 High carbon,Dark 58.870560000000005 20.6976 108.289 High carbon,Light 47.28153692307692 9.64698 114.253 Low carbon,Dark 29.0659 29.0659 29.0659 Phloroglucinol 23.1655 15.5674 30.579 Silicon starvation,12h 37.6933 37.6933 37.6933