condition mean min max 12pM Fe,Midday 0.0 0.0 0.0 12pM Fe,Midnight 1.296855 0.0 2.59371 58pM Fe,Midday 0.0 0.0 0.0 58pM Fe,Midnight 0.0 0.0 0.0 233pM Fe,Midnight 0.52242 0.0 1.56726 1160pM Fe,Midday 0.0 0.0 0.0 1160pM Fe,Midnight 0.4845075 0.0 2.03261 High carbon,Dark 1.167166 0.0 10.1891 High carbon,Light 0.6291823076923078 0.0 8.17937 Low carbon,Dark 4.10832 4.10832 4.10832 Phloroglucinol 2.64988 0.0 4.75281 Silicon starvation,12h 10.0695 10.0695 10.0695