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nutrients = [
{ formula: "NNO3", name: "Nitrate" },
{ formula: "NNH4", name: "Ammonium" },
{ formula: "P", name: "Phosphorus" },
{ formula: "K", name: "Potassium" },
{ formula: "Ca", name: "Calcium" },
{ formula: "Mg", name: "Magnesium" },
{ formula: "S", name: "Sulfur" },
{ formula: "Na", name: "Sodium" },
{ formula: "Cl", name: "Chloride" },
{ formula: "Si", name: "Silicon" },
{ formula: "Fe", name: "Iron" },
{ formula: "Zn", name: "Zinc" },
{ formula: "B", name: "Boron" },
{ formula: "Mn", name: "Manganese" },
{ formula: "Cu", name: "Copper" },
{ formula: "Mo", name: "Molybdenum" }
]
nutrients.each do |attrs|
Nutrient.find_or_create_by!(attrs)
end
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