Using sulfur oxidizing bacteria and P solubilizing for
fertilizer production in Iran is obtained from mines in Northern Africa Iran USA Russia China and in Morocco which produces 75% of all the world rock phosphate van Kauwenbergh 2022 Use of rock phosphate as a source of P fertilizer is suitable for acidic soils but in calcareous soils high pH and high CaCO 3 decrease the fertilizer solubility Chein et al 1996 Abd …