If the trees fruited but you got much more than the ideal growth, reduce the rate by one-third next year. Increase the rate if tree vigor was too low. Now you may be getting the idea why it's so hard to get a straight answer from a tree fruit expert. Managing vigor is the key. Heavy pruning invigorates trees, so reduce the amount of fertilizer following heavy pruning.
Trees grown on sandy soils generally require more fertilizer than on loamy or clay soils.
If you get a late freeze that reduces or wipes out the crop, you will have a vigorous tree to deal with. The University of Georgia has many free publications on fruit production in the home garden. You can get copies from your county extension office. There, you'll find news features, briefs and tips and photographs or art to illustrate some of them.