Hi, I'm new to the forum and a fairly inexperienced gardener. I moved to a rural property about a year and a half ago and am learning as I go. I have a dwarf nectarine tree that seems to be thriving. It bore lots of small but beautiful nectarines this summer, but they never got sweet. The fruit ripened and got soft, but was very very acidic. Flavorful, but just too tart. Is there any way to improve the sweetness and reduce the acidity of the fruit next season? I'm in Marana, just north of Tucson (a little hotter in the summer and a little colder in the winter.) Thanks in advance for any suggestions.