condition mean min max 12pM Fe,Midday 12.0304 12.0304 12.0304 12pM Fe,Midnight 9.461780000000001 8.63866 10.2849 58pM Fe,Midday 6.58981 6.58981 6.58981 58pM Fe,Midnight 7.192502857142857 0.0 10.0827 233pM Fe,Midnight 8.29353 7.52672 9.00845 1160pM Fe,Midday 8.491767142857142 6.93185 10.3022 1160pM Fe,Midnight 2.584555 1.0037 5.04408 High carbon,Dark 5.18514 2.04294 9.77957 High carbon,Light 4.124160615384615 0.795578 9.59676 Low carbon,Dark 1.86181 1.86181 1.86181 Phloroglucinol 2.6325000000000003 1.88464 3.02484 Silicon starvation,12h 14.5047 14.5047 14.5047