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Forskningsartikel2019Vetenskapligt granskadÖppen tillgång

A 60-years old field experiment demonstrates the benefit of leys in the crop rotation

Zhou, Zhenjiang; Palmborg, Cecilia; Ericson, Lars; Dryler, Kent; Lindgren, Kim; Bergkvist, Goran; Parsons, David

Sammanfattning

In the 1950s, a long-term experiment was initiated at three locations in Northern Sweden. The treatments included four cropping systems, which differed in the number of years with leys or annual crops in the crop rotation. To create awareness of the experiment as a research resource for further scientific studies, we summarise the history (experimental design, materials and methods, main measurements) and scientific findings of the experiment, as well as reflect on its usefulness and opportunities for further studies. So far, scientific focus has been on the effects of cropping systems on soil characteristics. The main findings indicate that soil porosity and hydraulic conductivity were greater in cropping systems with a large proportion of ley, soil bulk density showed the opposite trend. In terms of chemical properties, cropping systems incorporating more ley also have greater soil organic carbon content than annual crops systems, and both soil carbon and N storage decrease over time in cropping systems with only annual crops. The effects of cropping system on crop yields and quality are areas for further investigation.

Nyckelord

Crop rotation; forage crop; legume; soil organic carbon; soil organic nitrogen

Publicerad i

Acta Agriculturae Scandinavica, Section B - Soil and Plant Science
2019, Volym: 69, nummer: 1, sidor: 36-42 Utgivare: TAYLOR & FRANCIS AS

      SLU författare

    • Zhou, Zhenjiang

      • Institutionen för norrländsk jordbruksvetenskap, Sveriges lantbruksuniversitet
      • Palmborg, Cecilia

        • Institutionen för norrländsk jordbruksvetenskap, Sveriges lantbruksuniversitet
        • Ericson, Lars

          • Institutionen för norrländsk jordbruksvetenskap, Sveriges lantbruksuniversitet
          • Dryler, Kent

            • Institutionen för norrländsk jordbruksvetenskap, Sveriges lantbruksuniversitet
            • Lindgren, Kim

              • Institutionen för norrländsk jordbruksvetenskap, Sveriges lantbruksuniversitet
                • Parsons, David

                  • Institutionen för norrländsk jordbruksvetenskap, Sveriges lantbruksuniversitet

                UKÄ forskningsämne

                Markvetenskap

                Publikationens identifierare

                DOI: https://doi.org/10.1080/09064710.2018.1492010

                Permanent länk till denna sida (URI)

                https://res.slu.se/id/publ/96977