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NITROGEN AND PHOSPHORUS LEVELS IN SOILS UNDER MUNICIPAL SEWAGE EFFLUENT IRRIGATION

  • Author:C. JAYARAMAN and RANI PERUMAL

    p-ISSN:0024-9602, e-ISSN:2582-5321, Vol:71, Issue:feb-feb

    DOI: https://doi.org/10.29321/MAJ.10.A02443
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Abstract

                                Sewage irrigation continuously over a period of 25 years and 15 years significantly favoured the total, ammonical and available N content in the soil. While NH-N accu- mulation was of a higher order in sewage treated soil NO-N concentration was com paratively lower, irrespective of years of treatment In 25 years sowage irrigated soils, a three fold increase in available phosphorus was observed. The concentration of total and available phosphorus decreased with depth.

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ISSN : 0024-9602
eISSN : 2582-5321

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