Apricot trees

Question

Apricot tree has not produced fruit. Tree three or four years old.

Answer 1

I would recommend adding phosphorus to the soil. This article will explain more: https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/phosphorus-plant-growth.htm

For additional reasons why this can occur, this article should be of some help: https://www.gardeningknowhow.com/edible/fruits/apricots/apricot-tree-not-fruiting.htm