condition mean min max 12pM Fe,Midday 0.765508 0.765508 0.765508 12pM Fe,Midnight 0.1308875 0.0 0.261775 58pM Fe,Midday 0.451571 0.451571 0.451571 58pM Fe,Midnight 1.0893482857142858 0.0 1.89518 233pM Fe,Midnight 0.47777233333333335 0.323136 0.635646 1160pM Fe,Midday 0.7072484285714286 0.0 2.24546 1160pM Fe,Midnight 0.8719479166666667 0.0 2.41791 High carbon,Dark 1.9386255333333333 0.445547 8.09349 High carbon,Light 0.9516985384615384 0.0 2.75173 Low carbon,Dark 1.24392 1.24392 1.24392 Phloroglucinol 3.5580106666666667 0.479687 9.38773 Silicon starvation,12h 1.88738 1.88738 1.88738