Chuck Suchy has a song called "Summer Hands" about the hands of a farmer. It appears on his album Dakota Breezes. I could only find this quote:

...with the work that it brings
When the wheat-grass greens and meadowlark sings
Summer hands.

Summer hands start out tender and thin
Not much different from their city friends
They toughen as they're used time and again
Summer hands.

Summer hands hold the newborn child,
Cool mother's brow, reassure her a while...