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Mineralization and gaseous losses of nitrogen from urea and ammonium sulphate in salt-affected soils

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Summary

An incubation study on mineralization and gaseous losses of nitrogen was conducted on three soils with increasing levels (1.1 to 50 mmhos/cm) of salinity and two levels of urea and ammonium sulphate upto 6 weeks. Mineralization of nitrogen increased with time and decreased with the increase of salinity. It was more from ammonium sulphate than urea, and relatively more from the lower dose. The gaseous losses of NH4-N increased with salinity. About 35±5 per cent of added N was lost in the gaseous form at maximum (ECe=45 to 50 mmhos/cm) salinity and losses were more from light than heavier soils. Salinity and pH, both were correlated negatively with the N mineralisation and positively with the gaseous losses of ammonia in these salt-affected soils. re]19751105

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Authors and Affiliations

  1. Udaipur University, Udaipur

    A. P. Gandhi & K. V. Paliwal

  2. Water Technology Centre, Indian Agricultural Research Institute, 110012, New Delhi

    A. P. Gandhi & K. V. Paliwal

Authors
  1. A. P. Gandhi
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  2. K. V. Paliwal
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Gandhi, A.P., Paliwal, K.V. Mineralization and gaseous losses of nitrogen from urea and ammonium sulphate in salt-affected soils. Plant Soil 45, 247–255 (1976). https://doi.org/10.1007/BF00011146

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  • DOI: https://doi.org/10.1007/BF00011146

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