condition mean min max 12pM Fe,Midday 0.0 0.0 0.0 12pM Fe,Midnight 0.0 0.0 0.0 58pM Fe,Midday 0.0 0.0 0.0 58pM Fe,Midnight 0.0 0.0 0.0 233pM Fe,Midnight 0.0 0.0 0.0 1160pM Fe,Midday 0.0 0.0 0.0 1160pM Fe,Midnight 0.0 0.0 0.0 High carbon,Dark 0.9031677333333333 0.0 5.97621 High carbon,Light 0.33737946153846154 0.0 1.21147 Low carbon,Dark 0.0 0.0 0.0 Phloroglucinol 1.055007 0.283231 1.83979 Silicon starvation,12h 0.0 0.0 0.0