You have left out some important information. What variety of apple is this?
What
rootstock is it on. If it is on standard rootstock, it will be slower to
produce fruit
than a dwarf tree. It if is a tip bearer (fruit on the end of the branch),
excessive
pruning can cut off the next seasons fruit bearing branch tips. Is the tree
getting
enough sunlight? When you answer these questions, I might be able to help you.

Sherwin D.

lerameur wrote:

Hello,

I have a 12 year old apple tree. It is well pruned, but year after
year I get no fruit buds. (well 5 to 10)
Should I be adding some kind of fertilizer. Any idea to make my apple
tree produces buds ??
thanks

ken