condition mean min max 12pM Fe,Midday 38.0789 38.0789 38.0789 12pM Fe,Midnight 37.74525 37.4881 38.0024 58pM Fe,Midday 27.0459 27.0459 27.0459 58pM Fe,Midnight 24.62194285714286 0.0 32.3917 233pM Fe,Midnight 18.445666666666664 16.6958 20.4347 1160pM Fe,Midday 20.335571428571427 18.8524 22.3473 1160pM Fe,Midnight 12.779796666666668 7.83251 17.7631 High carbon,Dark 22.30788 11.8016 33.83 High carbon,Light 14.967131538461539 4.62425 22.8841 Low carbon,Dark 20.5331 20.5331 20.5331 Phloroglucinol 25.5644 20.1878 32.1091 Silicon starvation,12h 30.1183 30.1183 30.1183