Which lawn fertilizer option contains zero nitrogen?

Prepare for the NOCTI Plant Science Exam. Utilize flashcards and multiple choice questions, each equipped with hints and explanations. Get exam-ready today!

Multiple Choice

Which lawn fertilizer option contains zero nitrogen?

Explanation:
Nitrogen content is what sets lawn fertilizer apart most in the short term, because nitrogen drives leafy growth and the green color of the turf. Fertilizer labels list three numbers as N-P-K, with the first number representing nitrogen. To have zero nitrogen, the label must start with 0. Among the options, the one labeled 0-10-15 starts with 0, so it provides no nitrogen and delivers only phosphorus (for root and bloom development) and potassium (for overall health and stress tolerance). The other labels all begin with a nonzero number (5, 12, or 5), meaning they would supply nitrogen and promote additional leaf growth. So this zero-nitrogen option is the best fit when you want to feed phosphorus and potassium without increasing shoot growth.

Nitrogen content is what sets lawn fertilizer apart most in the short term, because nitrogen drives leafy growth and the green color of the turf. Fertilizer labels list three numbers as N-P-K, with the first number representing nitrogen. To have zero nitrogen, the label must start with 0. Among the options, the one labeled 0-10-15 starts with 0, so it provides no nitrogen and delivers only phosphorus (for root and bloom development) and potassium (for overall health and stress tolerance). The other labels all begin with a nonzero number (5, 12, or 5), meaning they would supply nitrogen and promote additional leaf growth. So this zero-nitrogen option is the best fit when you want to feed phosphorus and potassium without increasing shoot growth.

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