condition mean min max 12pM Fe,Midday 28.5718 28.5718 28.5718 12pM Fe,Midnight 26.3195 25.4093 27.2297 58pM Fe,Midday 22.3856 22.3856 22.3856 58pM Fe,Midnight 28.256785714285716 20.5312 33.7802 233pM Fe,Midnight 12.0001 11.4584 12.6119 1160pM Fe,Midday 18.1714 15.356 21.9124 1160pM Fe,Midnight 20.053191666666667 17.9593 22.9705 High carbon,Dark 27.004846 1.12159 43.8129 High carbon,Light 14.719543076923078 2.29135 39.3051 Low carbon,Dark 23.7171 23.7171 23.7171 Phloroglucinol 4.36893 3.24362 5.48422 Silicon starvation,12h 18.7729 18.7729 18.7729