condition mean min max 12pM Fe,Midday 19.0814 19.0814 19.0814 12pM Fe,Midnight 17.46685 17.1379 17.7958 58pM Fe,Midday 7.6746 7.6746 7.6746 58pM Fe,Midnight 8.826882857142857 0.0 12.5781 233pM Fe,Midnight 8.197523333333333 7.70645 8.60381 1160pM Fe,Midday 15.225542857142857 12.4302 19.1968 1160pM Fe,Midnight 9.628070833333334 2.07803 14.3826 High carbon,Dark 22.92353466666667 5.58715 92.0331 High carbon,Light 20.617347692307693 3.06368 52.3785 Low carbon,Dark 33.8254 33.8254 33.8254 Phloroglucinol 35.1845 17.573 51.6068 Silicon starvation,12h 38.1631 38.1631 38.1631