condition mean min max 12pM Fe,Midday 0.845629 0.845629 0.845629 12pM Fe,Midnight 0.4337605 0.0 0.867521 58pM Fe,Midday 0.0 0.0 0.0 58pM Fe,Midnight 0.7198357142857142 0.0 2.14115 233pM Fe,Midnight 0.5250106666666666 0.0 1.0484 1160pM Fe,Midday 1.9068272857142858 0.686481 3.38247 1160pM Fe,Midnight 0.11519991666666667 0.0 0.714654 High carbon,Dark 2.056750666666667 0.0 9.60641 High carbon,Light 23.032702307692308 0.0 126.757 Low carbon,Dark 19.2376 19.2376 19.2376 Phloroglucinol 1.06294 0.0 2.11957 Silicon starvation,12h 6.73591 6.73591 6.73591