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Understand what the key fertilizer ingredients are and how to pick the right mix for your needs. Lopolo / Shutterstock.com
When you’re buying fertilizer, you’ll notice three little numbers on the bag. But why do they matter and what do they mean? These numbers refer to the fertilizer’s mix of three main ingredients: nitrogen, phosphorus, and potassium. Each of these ingredients is essential for helping your grass grow. The percentage of each differs between brands and types of fertilizer since different plants…