condition mean min max 12pM Fe,Midday 0.0 0.0 0.0 12pM Fe,Midnight 0.1418435 0.0 0.283687 58pM Fe,Midday 0.0 0.0 0.0 58pM Fe,Midnight 0.032600285714285714 0.0 0.228202 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 0.0 0.0 0.0 High carbon,Light 0.0 0.0 0.0 Low carbon,Dark 0.0 0.0 0.0 Phloroglucinol 0.0 0.0 0.0 Silicon starvation,12h 0.0 0.0 0.0