Important Nutrient Ratios
Nutrients
Recommended Ratio / Notes
Ca : Mg 8 to 1 Fe : Mn 1 to 1 K : Na K should be higher than Na, typically K : Mg 8 to 1
Leaf tissue: 3 or 4 to 1 Container media: 1 to 1 Vegetative plants: 3 to 2 Flowering plants: 1 to 1
K : Ca
N : K
N : P 10 to 1 N : S 15 to 1 Ca : B 500 to 1 P : Fe 29 to 1
No exact ratio, but plants need significantly more iron than copper
Fe : Cu
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