condition mean min max 12pM Fe,Midday 12.8103 12.8103 12.8103 12pM Fe,Midnight 35.6981 29.4062 41.99 58pM Fe,Midday 11.8881 11.8881 11.8881 58pM Fe,Midnight 16.3971 0.0 23.3033 233pM Fe,Midnight 45.41256666666666 43.8202 48.5481 1160pM Fe,Midday 15.532185714285713 13.1741 20.4183 1160pM Fe,Midnight 11.4881325 4.39588 24.6692 High carbon,Dark 25.908924 3.29756 74.2682 High carbon,Light 65.18742615384615 3.76052 181.61 Low carbon,Dark 17.5161 17.5161 17.5161 Phloroglucinol 11.3947 5.5346 18.3707 Silicon starvation,12h 32.71 32.71 32.71