Certified GKH Gardening Expert
For fruiting plants, you want something that has a little more phosphorous. Plants need phosphorous to flower and grow fruit and a little extra will help fruiting plant produce better.
I would suggest taking a soil sample to your county extension office. They canthe exact amounts and types. The problem with recommending fertilizer is you can set the tree back from producing fruit, waste money on nutrients the tree doesn't need and cause to much growth.