condition mean min max 12pM Fe,Midday 2.26446 2.26446 2.26446 12pM Fe,Midnight 20.071199999999997 19.4283 20.7141 58pM Fe,Midday 0.166975 0.166975 0.166975 58pM Fe,Midnight 4.528771428571429 0.0 6.07335 233pM Fe,Midnight 13.901566666666668 10.6341 15.558 1160pM Fe,Midday 1.1148665714285715 0.624094 1.63234 1160pM Fe,Midnight 4.027394166666666 2.84831 6.24348 High carbon,Dark 26.345253333333332 8.07529 47.1177 High carbon,Light 10.264843076923077 1.64973 24.1097 Low carbon,Dark 5.51949 5.51949 5.51949 Phloroglucinol 1.7339233333333335 1.15708 2.74397 Silicon starvation,12h 0.75157 0.75157 0.75157