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  • 1
    Electronic Resource
    Electronic Resource
    Occurrence and activity of phosphate-solubilizing fungi from coconut plantation soils (1985)
    Springer
    Plant and soil 87 (1985), S. 357-364 
    Details
    ISSN: 1573-5036
    Keywords: Coconut soils ; Competitive saprophytic ability ; Phosphate-solubilizing fungi
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary The occurrence of phosphate-solubilizing fungi in coconut plantation soil types was investigated. The laterite, alluvial and clayey soils harboured more of the P-solubilizing fungi than the sandy soils. The isolated P-solubilizing fungi solubilized 26 to 74 per cent of the tricalcium phosphate in 5 to 15 days. The competitive saprophytic ability of the active P-solubilizing fungi in soil varied between the isolates. Eight fungi with high P-solubilizing capacity and high competitive saprophytic ability were recognised. They have better capacity to survive in soil and express their role in P-solubilization.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02181903
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Competitive role of inhibitive and aggressive ions in the corrosion of steel in concrete (2000)
    Springer
    Journal of applied electrochemistry 30 (2000), S. 1255-1259 
    Details
    ISSN: 1572-8838
    Keywords: aggressive ions ; complexing agents ; inhibitors ; simulated concrete environments ; steel in concrete
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract The effect of various inhibitive ions (hydroxide, citrate, stannate) for the corrosion of steel in concrete was studied by weight loss measurements, chronopotential studies, anodic polarization technique and compressive strength tests. The salient features of the investigation were: in 100% OPC as well as in OPC + fly ash (3:1 ratio) extracts the passivity of steel was readily destroyed even by the presence of 10 000 ppm of chloride. However in 100% OPC and also in OPC + fly ash (3:1 ratio) extracts containing inhibitive and complexing agents like hydroxide, citrate and stannate, the passivity of steel was maintained even in the presence of 30 000 ppm of chloride. The addition of inhibitive ions like hydroxide, citrate and stannate not only decreased the corrosion rate of steel in simulated concrete environments but also increased the compressive strength of mortars. Citrates, stannates and CaO are effective inhibitors of the corrosion of steel in concrete.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1026570120698
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    Paper (German National Licenses)
    Fulltext
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