condition mean min max 12pM Fe,Midday 44.0956 44.0956 44.0956 12pM Fe,Midnight 53.780100000000004 51.8477 55.7125 58pM Fe,Midday 44.6078 44.6078 44.6078 58pM Fe,Midnight 46.455642857142855 44.2369 50.0138 233pM Fe,Midnight 15.6133 15.3602 15.8212 1160pM Fe,Midday 33.22184285714285 30.9005 36.8767 1160pM Fe,Midnight 12.125539166666666 7.52594 18.0721 High carbon,Dark 7.698123266666666 0.600762 23.3001 High carbon,Light 6.7777126153846154 0.148766 16.8676 Low carbon,Dark 6.98059 6.98059 6.98059 Phloroglucinol 3.082543333333333 2.7958 3.44325 Silicon starvation,12h 2.94742 2.94742 2.94742