Remember not to feed them if they're dry - make sure they're well watered first, then feed.
Last year we gave everything a thorough soaking, then mulched (about 2 inches) with very well rotted horsey stuff. This kept the surface from drying out, and it was always damp underneath, even though we'd gone several days without watering. And it's fantastic to dig in afterwards. New fruit trees need lots of water in their first few years, till they're established.
Also it's better to water at night, or very early in the morning - like dawn chorus time.