Elemental

Modern farming includes 'economic' fertilizing.
The usual method of fertilizing is to supplement the soil with 3, 4, 5, 6, elements, or less.
Most plants and people thrive on 30, 40, 50, 60, elements or more.
The soil is impoverished. How many factory farmers add even basic elements such as iron much less important trace elements.
Even with genetic engineering and evolutionary trends, crops and people aren't well nourished.
If it is not in the soil peaches and spinach don't have what it takes.
Romans fed the legions on Egyptian wheat because they learned that it had the power to run their army.
The ancients knew that the quality of their food supply was a matter of national security.