condition mean min max 12pM Fe,Midday 0.0 0.0 0.0 12pM Fe,Midnight 0.4721895 0.468973 0.475406 58pM Fe,Midday 0.0 0.0 0.0 58pM Fe,Midnight 0.17111342857142858 0.0 0.811965 233pM Fe,Midnight 0.47678333333333334 0.284692 0.578901 1160pM Fe,Midday 0.36282185714285714 0.0 0.771955 1160pM Fe,Midnight 0.23215225 0.0 0.721953 High carbon,Dark 0.29641806666666665 0.0 1.84231 High carbon,Light 1.7310985384615385 0.0 12.3244 Low carbon,Dark 4.457 4.457 4.457 Phloroglucinol 1.166746 0.622898 1.44506 Silicon starvation,12h 2.60098 2.60098 2.60098