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Rice, the staple for nearly half the world's population, faces production limits in tidal swamp soils due to zinc (Zn) deficiency.This study isolated Zn-solubilizing bacteria from Riau Province tidal rice fields, Indonesia, to enhance soil Zn availability and rice seedling vigour.Twelve isolates showed Zn solubilization, with PS5 achieving 109.68 mg/L efficiency and a vigour index of 1.76475; they also displayed plant growth-promoting rhizobacteria (PGPR) traits like nitrogen fixation, phosphate/potassium solubilization, indole-3-acetic acid production, and organic acid secretion.16S rDNA analysis identified top strains as Acinetobacter sp.BHS4 and Bacillus safensis P5.4,positioning them as bioinoculants to combat Zn deficiency and lower chemical fertilizer needs in tidal rice systems.
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Anis Fahri (2026) studied this question.
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