Domestic Production and Use: Phosphate rock ore was mined by five firms at 10Marketable product refers to beneficiated phosphate rock with phosphorus.
Marketable phosphate rock production decreased for the fifth consecutive year, falling 17% fromproduction rates at phosphate rock mines and fertilizer plants.
PHOSPHATE ROCK. By Joyce A. Ober. Phosphorus is an essential element for plant and animal potential impacts for the fertilizer industry can be summarized.