Fertilizing Mature Citrus Trees

How do I know which citrus fertilizer is best for our 15+ year old orange and lemon trees? The greenery is plentiful and healthy looking on all trees except our mandarin orange, which is losing leaves like crazy. Do I choose a food with low nitrogen to improve the flavor and juiciness or high nitrogen? Low phosphorus or high?

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1 Comment To "Fertilizing Mature Citrus Trees"

#1 Comment By Nikki On 04/13/2011 @ 9:03 am

You want lower nitrogen and higher phosphorus. These articles will be of interest to you:
https://www.gardeningknowhow.com/edible/fruits/citrus/fertilizing-citrus-trees-best-practices-for-citrus-fertilizing.htm ^[1]
https://www.gardeningknowhow.com/edible/fruits/citrus/citrus-fruit-thick-rind.htm ^[2]

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URLs in this post:

[1] https://www.gardeningknowhow.com/edible/fruits/citrus/fertilizing-citrus-trees-best-practices-for-citrus-fertilizing.htm: https://www.gardeningknowhow.com/edible/fruits/citrus/fertilizing-citrus-trees-best-practices-for-citrus-fertilizing.htm

[2] https://www.gardeningknowhow.com/edible/fruits/citrus/citrus-fruit-thick-rind.htm: https://www.gardeningknowhow.com/edible/fruits/citrus/citrus-fruit-thick-rind.htm

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