condition mean min max 12pM Fe,Midday 11.0451 11.0451 11.0451 12pM Fe,Midnight 12.32965 11.797 12.8623 58pM Fe,Midday 11.8864 11.8864 11.8864 58pM Fe,Midnight 7.728277142857143 0.0 12.7253 233pM Fe,Midnight 6.0950766666666665 5.85946 6.47674 1160pM Fe,Midday 6.156665714285714 4.29859 8.63863 1160pM Fe,Midnight 6.004271666666667 4.47872 8.55551 High carbon,Dark 9.943736666666666 2.03471 44.4743 High carbon,Light 4.817833846153846 1.9515 8.84402 Low carbon,Dark 7.27619 7.27619 7.27619 Phloroglucinol 3.4068 2.05764 5.89802 Silicon starvation,12h 3.22709 3.22709 3.22709