“ The nutrients that rice crave are similar in chemical structure as arsenic .”
A friend of mine worked at the U of Mo ag station in SE Mo doing soil testing. He said the arsenic is left over from cotton farming. Arsenic was heavily used as a pesticide against the boll worm and has remained in the soil ever since.
There may be good news in this article. The old cotton growing areas now grow mostly peanuts and other (no rice) crops.
Here is the Boll Weavil Monument in downtown Enterprise, Alabama.
This monument was raised to honor the boll weevil because it forced the ALWAYS struggling cotton farmers to switch crops from cotton to peanuts. Many poor farmers got wealthy farming peanuts.