Lettuce: Macro nutrients - N (nitrogen)
Lettuce: Macro nutrients - P (phosphorus)
Lettuce: Macro nutrients - K (potassium)
Lettuce: Macro nutrients - Ca (calcium)
Lettuce: Macro nutrients - Mg (magnesium)
Lettuce: Macro nutrients - S (sulfur)
Lettuce: Micro nutrients - Mn (manganese)
Lettuce: Micro nutrients - Cu (copper)
Lettuce: Micro nutrients - Mo (molybdenum)