Fertilizer for Citrus Trees

Question

I would like the numbers that correspond to the correct ratio of nitrogen to phosphorus in grapefruit fertilizer. I used a 10-10-10 citrus tree fertilizer and there is a huge amount of rind compared to flesh.

Answer 1

A fertilizer with 16-5-16 or 16-5-20 should be effective for fertilizing citrus trees in your area.

This article will also help:
https://www.gardeningknowhow.com/edible/fruits/citrus/citrus-fruit-thick-rind.htm