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AVAILABILITY OF PHOSPHORUS UNDER APPLIED PHOSPHATE AND PHOSPHATE SOLUBILIZING BACTERIA | ||
| The Iraqi Journal of Agricultural Science | ||
| Article 1, Volume 42, Issue 6, 2011, Pages 100-105 | ||
| Author | ||
| Bahjat D. Yelda | ||
| Abstract | ||
| The aim of this experiment was to improve phosphate solubilizing activity of Bacillus megaterium which applied to the soil as inoculant , and its response to different phosphate fertilizer compounds , due to existence of the phosphorus in an unavailable and fixed form state . That stress to apply further quantity of soil phosphorus fertilizer to obtain of maximum production . Also to evaluate of the agronomic efficiency of phosphate fertilizers in a known ecological situation and to obtain maximum yield , especially when applied P-fertilizer differ in ratio and kind . The aim of this evaluation is to appropriate choice of a convenient P-fertilizer ,which can take place due to large number of new sources which have appeared on the market . The study was undertaken to measure the efficiency of mentioned genus of Bacteria to solubilize phosphate from the modern phosphate fertilizer source exist in the market which consist of N P K and minor elements and from an ordinary known P fertilizer ( KH2PO4 and T S P ) , by consecutive measuring P- available in the soil .The results showed a significant increase in phosphorus availability in both , fertilized and inoculated in Bacillus megaterium treatments of KH2PO4 , T S P as compared to treated with a newly modern P fertilizer Sangrad which didn’t show positive effect in soil phosphorus availability , under sandy soil texture and natural environmental incubation which lasted 50 days after inoculation . | ||
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