condition mean min max 12pM Fe,Midday 0.222433 0.222433 0.222433 12pM Fe,Midnight 0.1505175 0.0 0.301035 58pM Fe,Midday 0.0 0.0 0.0 58pM Fe,Midnight 1.9099242857142857 0.0 4.48412 233pM Fe,Midnight 0.14801266666666665 0.0 0.444038 1160pM Fe,Midday 3.9493485714285717 1.3209 6.38431 1160pM Fe,Midnight 0.41089056439 0.0 1.07311 High carbon,Dark 0.6849683255333333 0.0 4.28385 High carbon,Light 0.27055923407692306 0.0 1.99169 Low carbon,Dark 1.55271 1.55271 1.55271 Phloroglucinol 0.6781283333333333 0.51183 0.912301 Silicon starvation,12h 14.2647 14.2647 14.2647