condition mean min max 12pM Fe,Midday 40.5601 40.5601 40.5601 12pM Fe,Midnight 28.58795 23.4484 33.7275 58pM Fe,Midday 25.6353 25.6353 25.6353 58pM Fe,Midnight 15.499157142857143 0.0 22.5571 233pM Fe,Midnight 22.68263333333333 21.9649 23.1129 1160pM Fe,Midday 34.723328571428574 27.5517 42.1799 1160pM Fe,Midnight 11.162139166666666 8.55406 14.0859 High carbon,Dark 21.859013333333333 10.1036 33.1408 High carbon,Light 15.176756923076923 1.53565 58.2598 Low carbon,Dark 15.5561 15.5561 15.5561 Phloroglucinol 30.2281 24.5478 35.7567 Silicon starvation,12h 26.4459 26.4459 26.4459