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Isolation and Screening of Phosphorus Solubilizing Bacterial Strains in Tibetan Plateau(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2012年15期
Page:
161-163
Research Field:
Publishing date:

Info

Title:
Isolation and Screening of Phosphorus Solubilizing Bacterial Strains in Tibetan Plateau
Author(s):
WANG Ya-yi; LI Song-ling; CAI Xiao-jian; HAO Yu-lan
Qinghai Academy of Agricultural and Forestry Sciences，Xining，Qinghai 810016
Keywords:
Tibetan plateau; P-solubilizing bacteria; dissolved phosphorus ring; ability of P-solubilizing
PACS:
S 144.9
DOI:
-
Abstract:
By isolation and screening of phosphorus-solubilizing bacteria in cultivated farmland soil in Qinghai Province，48 strains were obtained which had obviously dissolved phosphorus ring.By determination of the ring size，there were 12 strains such as 5-1，5-2 and 12-7 with a ratio of dissolving phosphate zone diameter to culture community zone diameter(D/d) greater than or equal to 1.5.The results showed that three strains were isolated through broth screening increasing the content of available P in bacterial solution more than 180 μg/mL in average and pH down an average of one unit.Therefore，5-2，5-3 and 12-7 were determined as the final high dissolved phosphorus bacteria suitable for Qinghai agricultural district.

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Last Update: 2014-08-28