condition mean min max 12pM Fe,Midday 5.80397 5.80397 5.80397 12pM Fe,Midnight 7.144019999999999 5.33827 8.94977 58pM Fe,Midday 6.37525 6.37525 6.37525 58pM Fe,Midnight 4.220911428571428 0.0 5.78064 233pM Fe,Midnight 3.9629433333333335 3.1016 4.98556 1160pM Fe,Midday 3.3540614285714283 2.48214 4.00268 1160pM Fe,Midnight 6.19115 4.53339 7.41075 High carbon,Dark 14.979594 3.48924 34.5249 High carbon,Light 8.275210692307692 0.842249 14.719 Low carbon,Dark 7.15472 7.15472 7.15472 Phloroglucinol 14.7308 10.9107 21.1348 Silicon starvation,12h 5.35196 5.35196 5.35196