condition mean min max 12pM Fe,Midday 15.2645 15.2645 15.2645 12pM Fe,Midnight 16.2982 15.8507 16.7457 58pM Fe,Midday 12.0243 12.0243 12.0243 58pM Fe,Midnight 12.297357142857143 0.0 16.1238 233pM Fe,Midnight 7.886556666666666 7.70936 8.10342 1160pM Fe,Midday 10.306458571428571 9.33162 11.3126 1160pM Fe,Midnight 6.431136666666666 5.89952 7.09973 High carbon,Dark 7.657073333333333 2.36032 13.2809 High carbon,Light 5.219364615384616 0.7834 11.7767 Low carbon,Dark 4.15925 4.15925 4.15925 Phloroglucinol 6.161406666666666 4.46179 9.22659 Silicon starvation,12h 6.32843 6.32843 6.32843