The only way to increase yield was to find a way of supplying extra nitrogen, phosphorus and potassium to the soil.

ECONOMIST: The story of man's staple food

They hired a scientist to come up with a formulation of chemicals that delivered nitrogen, potassium and phosphorus in highly water-soluble form, so that an impatient gardener could give plants an instant shot to the leaves, so to speak.

FORBES: Magazine Article

Garlic also contains vitamin C, calcium, potassium, phosphorus, selenium and some key amino acids.

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