condition mean min max 12pM Fe,Midday 0.0 0.0 0.0 12pM Fe,Midnight 8.816845 8.45967 9.17402 58pM Fe,Midday 0.169689 0.169689 0.169689 58pM Fe,Midnight 7.300062857142858 0.0 9.48596 233pM Fe,Midnight 5.836333333333333 5.49376 6.0713 1160pM Fe,Midday 0.0 0.0 0.0 1160pM Fe,Midnight 1.8348578333333334 0.486208 3.55051 High carbon,Dark 3.535301733333333 0.0 10.1654 High carbon,Light 0.1623066923076923 0.0 0.861301 Low carbon,Dark 4.36271 4.36271 4.36271 Phloroglucinol 0.16757333333333335 0.120169 0.261309 Silicon starvation,12h 3.05514 3.05514 3.05514