Like Beasley, a retired large-animal veterinarian, farmers nationwide are hard-pressed these days to find mechanics trained to maintain their 21st-century equipment or workers who understand the complexities of modern farming or how to tend to cows or horses.In many cases, all sides agree, this is a result of a lack of communication and even a cultural divide between educators and farmers and other rural businesses. In others, colleges are putting a priority on turning out computer coders and other graduates with skills in demand farther afield.