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What do the numbers on the fertilizer label mean when it says “15-10-30” ?

April 26, 2017fertilizer Label mean Numbers

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What do the numbers on the fertilizer label mean when it says “15-10-30” ?

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Those numbers represent the amounts of nitrogen, phosphorous, and potassium that are in the nutrient, and are always listed in that order, according to California state agricultural regulations. The other elements will be listed on the label, and the chemicals used to make the formula must be specified as well.