condition mean min max 12pM Fe,Midday 20.0148 20.0148 20.0148 12pM Fe,Midnight 13.64795 11.5055 15.7904 58pM Fe,Midday 24.733 24.733 24.733 58pM Fe,Midnight 10.024514285714286 0.0 12.4199 233pM Fe,Midnight 7.375116666666666 6.87702 7.97521 1160pM Fe,Midday 16.4842 14.3229 18.0277 1160pM Fe,Midnight 6.0009508333333335 5.00368 7.21708 High carbon,Dark 6.261116 1.6408 12.9365 High carbon,Light 6.527866076923077 0.812619 14.7833 Low carbon,Dark 6.44858 6.44858 6.44858 Phloroglucinol 6.98544 5.83842 8.46378 Silicon starvation,12h 15.2164 15.2164 15.2164