Kumquat tree (not in a pot)

Question

Good day,

I have had my tree now for about 7 years, every year it would bear proper little fruits, this year only has 3 fruit but huge similar to a thick skin lemon, what is my problem?

Thank you.

NB: do not have photo

Answer 1

This sounds like the tree is taking up too much nitrogen. You can offset this by adding nutrients high in potassium and phosphorus. Here is an article that will help: https://www.gardeningknowhow.com/edible/fruits/citrus/citrus-fruit-thick-rind.htm