In my IMHO letting them fruit young also is another way of naturally dwarfing trees.
thank you Frank, at about what age? I let a couple of my mango trees fruit out of a 15g pot, they had a very nice crop but didn't produce next 2 years, got bad mbbs and I had to hard prune them. But they were nursery plants, probably root bound. Let's see if they will get dwarfed, one of them is Super Julie - a very vigorous tree
Low nitrogen fertilizing along with letting a precocious tree hold fruit early can have a stunting effect. While it doesn't always work, and can also kill a tree, sometime it does have a stunting effect. One of my oldest trees was a Hatcher planted in the ground as a 3 gal. Here is a photo of it 10 years later.
After holding lots of fruit it would only have a few growth spurts before flowering again. It has since been top worked to a Orange Sherbet which, so far, is growing more than fruiting.