In order for a rock/mineral to be usable by a plant, it must FIRST be eaten by fungus/bacteria. Mineral poor land? There is not such thing, it should be called STERIL LAND.
BOOK II at the end explains Steril land in that the first chem trail experiments sterilized the entire state of TEXAS back in the late 40's wih DDT, etc. thanks to NAVY JETS with sprayers the very first Chem Trail Jets.
Good ole boys in their high speed jets chose Texas as the first experiement. The bacteriloligist were then called in to do studies and they declared Texas had killed millions of species of bacteria in their soil as a result of ddt. etc. and in the future man would have to fight to raise crops in such poor soil.
It takes LIVE SOIL to grow plants, so to make your garden rich, you add bacteria.