Aha!
You show temps up to 85- is that in the cab or RIGHT at the canopy? It's winter, and air is drier this time of year... you don't have a %RH reading but high temps and low humidity= trouble.
Explains the upturned edges.

Water pH 7.0. Uh oh.
Unless your soil is lower, high pH will certainly contribute to misshapen leaves. The most important pH # is that of the runoff, so check that.