This is the percentage a product contains by volume of nitrogen (chemical symbol N), phosphorus (P), and potassium (K). A 5-10-15 fertilizer therefore contains 5% nitrogen, 10% phosphorus, and 15% potassium.
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This is the percentage a product contains by volume of nitrogen (chemical symbol N), phosphorus (P), and potassium (K). A 5-10-15 fertilizer therefore contains 5% nitrogen, 10% phosphorus, and 15% potassium.
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