condition mean min max 12pM Fe,Midday 33.5867 33.5867 33.5867 12pM Fe,Midnight 41.99395 41.1098 42.8781 58pM Fe,Midday 28.6943 28.6943 28.6943 58pM Fe,Midnight 31.922857142857143 27.4474 36.6852 233pM Fe,Midnight 12.0631 11.2443 12.7315 1160pM Fe,Midday 23.975985714285713 23.0126 25.636 1160pM Fe,Midnight 13.309955 7.26999 17.8774 High carbon,Dark 57.53584 18.4699 108.775 High carbon,Light 33.67945230769231 4.5455 77.4464 Low carbon,Dark 31.1152 31.1152 31.1152 Phloroglucinol 6.490213333333333 4.94475 7.78954 Silicon starvation,12h 11.4219 11.4219 11.4219