condition mean min max 12pM Fe,Midday 57.6716 57.6716 57.6716 12pM Fe,Midnight 65.46635 64.5375 66.3952 58pM Fe,Midday 54.8176 54.8176 54.8176 58pM Fe,Midnight 52.5627 22.5727 60.3133 233pM Fe,Midnight 31.141133333333332 30.7711 31.6215 1160pM Fe,Midday 41.05167142857143 39.2308 44.2681 1160pM Fe,Midnight 93.90944166666667 19.9832 156.733 High carbon,Dark 27.30716 11.4651 41.2483 High carbon,Light 23.37586 2.63067 44.128 Low carbon,Dark 16.5491 16.5491 16.5491 Phloroglucinol 46.5091 40.8632 53.7384 Silicon starvation,12h 27.4475 27.4475 27.4475