condition mean min max 12pM Fe,Midday 2.83705 2.83705 2.83705 12pM Fe,Midnight 1.7177514999999999 0.485083 2.95042 58pM Fe,Midday 5.02071 5.02071 5.02071 58pM Fe,Midnight 3.0832457142857144 0.0 6.35844 233pM Fe,Midnight 0.39217599999999997 0.0 0.883415 1160pM Fe,Midday 4.8167285714285715 1.85918 7.81904 1160pM Fe,Midnight 0.4383978333333333 0.0 1.40069 High carbon,Dark 0.17221646666666665 0.0 1.0743 High carbon,Light 1.5444803076923077 0.0 5.65297 Low carbon,Dark 0.0 0.0 0.0 Phloroglucinol 0.5128233333333333 0.296295 0.644295 Silicon starvation,12h 0.0 0.0 0.0