condition mean min max 12pM Fe,Midday 26.6083 26.6083 26.6083 12pM Fe,Midnight 28.1814 26.9545 29.4083 58pM Fe,Midday 21.0322 21.0322 21.0322 58pM Fe,Midnight 25.412642857142856 22.2432 39.577 233pM Fe,Midnight 18.069766666666666 17.0562 19.2094 1160pM Fe,Midday 18.270485714285716 16.3433 20.1094 1160pM Fe,Midnight 16.654783333333334 13.0434 20.9556 High carbon,Dark 19.302138 9.85837 34.6604 High carbon,Light 17.767233076923077 5.37449 34.5711 Low carbon,Dark 17.0056 17.0056 17.0056 Phloroglucinol 27.6007 20.2712 33.7535 Silicon starvation,12h 33.3192 33.3192 33.3192