condition mean min max 12pM Fe,Midday 20.0894 20.0894 20.0894 12pM Fe,Midnight 24.98575 19.6281 30.3434 58pM Fe,Midday 18.6225 18.6225 18.6225 58pM Fe,Midnight 17.838428571428572 0.0 23.8366 233pM Fe,Midnight 13.2579 11.3195 14.8254 1160pM Fe,Midday 17.38797142857143 14.2934 19.415 1160pM Fe,Midnight 9.787845833333334 4.93461 12.5886 High carbon,Dark 24.744908 7.06748 39.4394 High carbon,Light 29.11239076923077 1.68956 55.2626 Low carbon,Dark 17.0995 17.0995 17.0995 Phloroglucinol 16.199266666666666 14.5153 17.5975 Silicon starvation,12h 79.4674 79.4674 79.4674