Again, not an expert but Dr. Sarah Taber claims that number is inflated by considering farm employees, not farm owners [0]. The claim is that farm owners are no worse than the baseline but that farm employees, often times low wage, migrant or undocumented workers, are the ones that suffer from a high suicide rate.

From the archived Twitter link:

""" In other words, the farm lobby has stolen farmworkers' deaths as their own. """

[0] https://web.archive.org/web/20201218002926/https://twitter.c...