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Southern Gardening

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Selecting fertilizers is one of the confusing decisions many gardeners face each year. Today let’s clear up the confusion. Regardless of type, any fertilizer you buy will specify the percentage of nutrients it contains, primarily nitrogen (N), phosphorus (P) and potassium (K). This is called the N-P-K ratio. For example, a fertilizer labelled with a ratio of 7-22-8 contains 7% nitrogen, 22% phosphorus, and 8% potassium. Let’s look at some common products. Granular fertilizers are made from synthetic sources.

Extension offices are getting calls about gray green stuff growing on their plants; learn about lichen with Gary Bachman.

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