Fertilizer – Summer heat

Q: Information I read says to use a fertilizer analysis with biggest number (nitrogen) first. Why would I not need to use products with second number (phosphorus) higher, so my fescue roots are deeper for the summer heat?

A: It’s true that strong roots need phosphorus. But if you soil has adequate phosphorus, you won’t help your fescue by adding more. Dr. Leticia Sonon at the University of Georgia Soils Lab says only 35 percent of the samples they get from north Georgia have low phosphorus content. Adding more phosphorus doesn’t help roots grow. Soil test details at www.georgiasoiltest.com.

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