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ninam_gw

Confusion on fertilizing fruit trees in Zone 5

ninam
11 years ago

I have read many -too many articles about when I should give my fruit trees nitrogen in the spring. I do try to find out for which areas the information is written. Even for those in my area the articles often state that the end of Feb, or early March are when I should fertilize. However, I have also read many times that Ammonium Sulfate does not work well under 60 degrees and can actually cause problems in lower temps. This is really conflicting since March is usually cold and even if air was slightly above freezing and the buds are swelling, the ground does not warm up as fast. So - when should I fertilize?

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