condition mean min max 12pM Fe,Midday 18.2067 18.2067 18.2067 12pM Fe,Midnight 14.792349999999999 13.8302 15.7545 58pM Fe,Midday 15.5498 15.5498 15.5498 58pM Fe,Midnight 13.554842857142857 0.0 18.1588 233pM Fe,Midnight 27.354233333333333 26.2266 28.0684 1160pM Fe,Midday 7.640965714285715 5.61431 10.209 1160pM Fe,Midnight 25.7641 15.862 35.845 High carbon,Dark 29.624304 7.52776 53.0749 High carbon,Light 22.560624615384615 0.0 53.4994 Low carbon,Dark 9.00419 9.00419 9.00419 Phloroglucinol 6.755083333333333 2.30213 9.22623 Silicon starvation,12h 35.491 35.491 35.491