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Promoted Growth of Maize by the Phosphate Solubilizing Bacteria Isolated from North-east China
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 Title & Authors
Promoted Growth of Maize by the Phosphate Solubilizing Bacteria Isolated from North-east China
Wu, Hai-Yan; Wang, Li-Chun; Gao, Xing-Ai; Jin, Rong-De; Fan, Zuo-Wei; Kim, Kil-Yong; Zhao, Lan-Po;
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A strain of phosphate solubilizing bacterium was isolated from rhizosphere and identified as Burkholderia sp. by 16S-rRNA gene sequence analyses. The bacterium was found to release gluconic acid and the solubilization of hydroxyapatite in the liquid medium by a significant drop in pH to 3.7 from an initial pH 7.0. The soluble-P concentration continuously increased during the incubation periods and the total amount of soluble P released in culture filtrate was detected at 990 mg after 10 days of inoculation. Most promoted maize growth was found in the standard NPK (240-120-120 kg ) soil inoculation with Burkholderia sp. (Twenty milliliters/plant, 106 CFU) and also in the absence of Burkholderia sp. inoculation, the soil amended with only 2/3 levels of P gave significant higher plant yield compared to 1/3 levels of P or without P supplementation.
Phosphate solubilizing bacteria;Burkholderia sp.;Gluconic acid;Maize;
 Cited by
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