In the fertilizer 23-6-4, which nutrient does the middle number represent?

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Prepare for the CR-21 Landscapes and Irrigation Test. Utilize flashcards and multiple-choice questions featuring hints and explanations. Get exam-ready!

Multiple Choice

In the fertilizer 23-6-4, which nutrient does the middle number represent?

Explanation:
Phosphorus content is shown by the middle number. The three values on an N-P-K fertilizer label represent nitrogen, phosphorus, and potassium. The middle value specifically measures how much phosphorus is in the product, and it’s reported as phosphoric acid (often shown as P2O5 equivalent). The first number is nitrogen, and the last is potassium as K2O. Lime isn’t part of this labeling.

Phosphorus content is shown by the middle number. The three values on an N-P-K fertilizer label represent nitrogen, phosphorus, and potassium. The middle value specifically measures how much phosphorus is in the product, and it’s reported as phosphoric acid (often shown as P2O5 equivalent). The first number is nitrogen, and the last is potassium as K2O. Lime isn’t part of this labeling.

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