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 0.036065 0.0 0.108195 1160pM Fe,Midday 0.016082285714285712 0.0 0.112576 1160pM Fe,Midnight 0.0 0.0 0.0 High carbon,Dark 0.0 0.0 0.0 High carbon,Light 0.04026707692307692 0.0 0.27942 Low carbon,Dark 0.277666 0.277666 0.277666 Phloroglucinol 0.29303599999999996 0.21415 0.432123 Silicon starvation,12h 0.0 0.0 0.0