(from 1987) has a section on how excessive use of nitrogenous fertilizer (as in most conventional agriculture) changes the electrostatic potential on clay micelles via pH changes which caused many of the other nutrients in the soil which are no longer as strongly held by clay to leach out (related to changing and so become unavailable to plants:
https://archive.org/details/to...
Having more organic matter in the soil can help resists this somewhat, but the real solution is not to dump too much chemical fertilizer on the soil and to consider using rock dust and other amendments to slowly remineralize the soil.
https://remineralize.org/
So, an aspect of this may be that many farmers may think more is better with chemical fertilizer (even as depleted soils, problematical cultivars, and early harvesting may indeed be aspects too).
As above, this has all been known for *decades* but it is hard to get a lot of people to care about it because the health effects are so gradual and the short-term profits from conventional agriculture are so immediate.
Good advice as always though to eat a varied balanced diet -- including foods grown in various places.