condition mean min max 12pM Fe,Midday 47.8999 47.8999 47.8999 12pM Fe,Midnight 34.3111 34.2912 34.331 58pM Fe,Midday 40.7901 40.7901 40.7901 58pM Fe,Midnight 26.5352 0.0 34.5077 233pM Fe,Midnight 18.4646 17.7454 18.9324 1160pM Fe,Midday 26.21302857142857 23.5265 29.1785 1160pM Fe,Midnight 13.335458333333333 10.7848 16.5541 High carbon,Dark 25.700657333333332 6.87806 50.3199 High carbon,Light 17.659792307692307 1.33097 36.0562 Low carbon,Dark 13.8374 13.8374 13.8374 Phloroglucinol 23.757166666666667 18.0481 29.4032 Silicon starvation,12h 26.9991 26.9991 26.9991