condition mean min max 12pM Fe,Midday 44.2593 44.2593 44.2593 12pM Fe,Midnight 35.4536 34.4134 36.4938 58pM Fe,Midday 30.0125 30.0125 30.0125 58pM Fe,Midnight 18.689442857142858 0.0 23.4751 233pM Fe,Midnight 16.54693333333333 14.9409 18.4617 1160pM Fe,Midday 23.223985714285714 20.1853 29.2138 1160pM Fe,Midnight 5.406761666666666 1.42244 11.8194 High carbon,Dark 19.31082 4.58913 33.9456 High carbon,Light 18.20626076923077 9.64319 28.8468 Low carbon,Dark 19.4923 19.4923 19.4923 Phloroglucinol 42.46136666666667 40.4346 45.2413 Silicon starvation,12h 45.8927 45.8927 45.8927