condition mean min max 12pM Fe,Midday 0.190885 0.190885 0.190885 12pM Fe,Midnight 0.0992565 0.0 0.198513 58pM Fe,Midday 0.168904 0.168904 0.168904 58pM Fe,Midnight 0.0 0.0 0.0 233pM Fe,Midnight 0.040288333333333336 0.0 0.120865 1160pM Fe,Midday 0.03891542857142857 0.0 0.146649 1160pM Fe,Midnight 0.036658083333333334 0.0 0.160142 High carbon,Dark 0.23563093333333332 0.0 1.21016 High carbon,Light 0.18929084615384614 0.0 0.8344 Low carbon,Dark 0.620363 0.620363 0.620363 Phloroglucinol 0.08357733333333334 0.0 0.13005 Silicon starvation,12h 0.217216 0.217216 0.217216