condition mean min max 12pM Fe,Midday 0.0 0.0 0.0 12pM Fe,Midnight 0.0 0.0 0.0 58pM Fe,Midday 0.0 0.0 0.0 58pM Fe,Midnight 0.0 0.0 0.0 233pM Fe,Midnight 0.46592866666666666 0.0 0.925249 1160pM Fe,Midday 0.07023900000000001 0.0 0.491673 1160pM Fe,Midnight 2.787452083333333 0.0 10.6624 High carbon,Dark 0.9201813333333334 0.0 5.39175 High carbon,Light 0.1779823076923077 0.0 1.22036 Low carbon,Dark 0.0 0.0 0.0 Phloroglucinol 0.0 0.0 0.0 Silicon starvation,12h 0.0 0.0 0.0