Co-Inoculation with Phosphate-Solubilizing Microorganisms of Rock Phosphate and Phosphogypsum and Their Effect on Growth Promotion and Nutrient Uptake by Ryegrass

In the previous half-century, natural rock phosphates (PN) have been a valuable alternative for phosphorus (P) fertilizer sustainable agriculture; furthermore, phosphogypsum (PG) has widely used as soil amendment since it improves some properties, increases crop yields, and represents an environmental concern that can make good economic profit; this research aimed to study effects of microbial consortia phosphate-solubilizing microorganisms (PSM) on solubilization PN PG in soil, their promoting plant growth nutrient assimilation using ryegrass model. Local supply with Pseudomonas fluorescens (MW165744) significantly root proliferation biomass dry weight compared other isolates, well total P uptake, maximum value 62.31 mg/pot. The opposite occurred mixing inoculation fluorescens, Pantoea agglomerans (MW165752) Stenotrophomonas maltophilia (MW221274), negligible 5.39 Whereas addition gave outstanding absorption 57.05 mg/pot when input 38.06 Finally, results prove co-inoculation could be promising option use source plants maintain high level nutrients soil.