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Research article2005Peer reviewedOpen access

Long-term management effects on plant N uptake and topsoil carbon levels in Swedish long-term field experiments: cereals and ley, crop residue treatment and fertilizer N application

Roing K, Andren O, Mattsson L

Abstract

Estimates of soil N mineralization capacity and the factors that control the rates are necessary for optimal N management. Long-term field experiments can be used to measure how different management options affect the amount and quality of soil organic matter (SOM) - the substrate for N mineralization. Net N mineralization was estimated in a pot experiment as N uptake by ryegrass ( Lolium perenne) grown in pots with soils from 30 Swedish long-term field fertility experimental treatments ( 16 - 40 years). The long-term management effects of cereal and ley rotations, crop residue removal and return and inorganic N application on ryegrass N uptake were investigated and related to soil organic carbon (SOC) content. Total plant N uptake during three months varied between 9 and 27 mg N kg(-1) ( 23 - 67 kg N ha(-1)) and increased with SOC concentration and previous application levels of inorganic N. Soil from crop rotations with ley mineralized about 50% more N than soil from crop rotations with only cereals. Plant N uptake and SOC were not significantly affected by crop residue return

Published in

Acta Agriculturae Scandinavica, Section B - Soil and Plant Science
2005, Volume: 55, number: 1, pages: 16-22
Publisher: TAYLOR & FRANCIS AS

      SLU Authors

    • Röing de Nowina, Kristina

      • Department of Soil Sciences, Swedish University of Agricultural Sciences

      • Mattsson, Lennart

        • Department of Soil Sciences, Swedish University of Agricultural Sciences

        • Andrén, Olof

          • Department of Soil Sciences, Swedish University of Agricultural Sciences

        UKÄ Subject classification

        Agricultural Science

        Publication identifier

        DOI: https://doi.org/10.1080/09064710510008739

        Permanent link to this page (URI)

        https://res.slu.se/id/publ/9662