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Potential for nitrate—N loss in central Alberta soils

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Abstract

Incubation experiments were conducted to determine the influence of soil type, soil depth and tillage-straw treatment on the capacity for NO3-N loss under anaerobic incubation. In Experiment 1 with 14 cultivated surface soil samples, there were substantial NO3-N losses in all soils regardless of the total organic carbon content. The total organic carbon content of these soils ranged from 21 to 55 g C kg−1. Experiment 2 showed that the rate of NO3-N loss decreased with depth of soil, but when glucose was added the rate of NO3-N loss increased markedly and all of the added NO3-N disappeared within less than a week. In Experiment 3, the soil under zero tillage where straw was retained gave slightly higher rate of NO3-N loss than the soil from conventional tillage treatment.

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Authors and Affiliations

  1. Research Station, Agriculture Canada, TOC 1SO, Lacombe, Alberta, Canada

    S. S. Malhi

  2. Department of Soil Science, University of Alberta, T6G 2E3, Edmonton, Alberta, Canada

    M. Nyborg

  3. Soils Branch, Alberta Agriculture, T6H 5H6, Edmonton, Alberta, Canada

    E. D. Solberg

Authors
  1. S. S. Malhi
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  2. M. Nyborg
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  3. E. D. Solberg
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(Scientific Paper No. 628)

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Malhi, S.S., Nyborg, M. & Solberg, E.D. Potential for nitrate—N loss in central Alberta soils. Fertilizer Research 25, 175–178 (1990). https://doi.org/10.1007/BF01161397

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  • DOI: https://doi.org/10.1007/BF01161397

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