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Sammanfattning

This study examined the long-term effects of applying structure lime (mixture of similar to 80% CaCO3 and 20% Ca(OH)(2)) and ground limestone (CaCO3) on soil aggregate stability and risk of phosphorus (P) losses 5-7 years after liming, incidence of soil-borne diseases and yield in winter wheat (Tritium aestivum), oilseed rape (Brassica napus) and sugar beet (Beta vulgaris). Lime was applied in 13 field trials in Sweden 2013-2015 and soil characteristics and crop yield were monitored until 2021. Seedbed (0-4 cm depth) aggregate (2-5 mm size) stability was improved to the same extent with both lime treatments compared to the untreated control, sampled 5-7 years after liming. Analyses and estimations of different P fractions (total P, PO4-P and particulate P) in leachate following simulated rainfall events on undisturbed topsoil cores sampled 6-8 years after liming revealed lower total P and particulate P concentrations in both lime treatments compared to the untreated control. Two sugar beet trial sites with soil pH 7.2 but yield of oilseed rape decreased after application of structure lime.

Nyckelord

structure lime; ground limestone; aggregate stability; phosphorus; sugar beet; soil-borne disease

Publicerad i

Agricultural and Food Science
2023, volym: 32, nummer: 3, sidor: 139-153
Utgivare: SCIENTIFIC AGRICULTURAL SOC FINLAND

SLU författare

Associerade SLU-program

SLU Nätverk växtskydd

Globala målen (SDG)

SDG2 Ingen hunger
SDG15 Ekosystem och biologisk mångfald

UKÄ forskningsämne

Markvetenskap

Publikationens identifierare

  • DOI: https://doi.org/10.23986/afsci.130983

Permanent länk till denna sida (URI)

https://res.slu.se/id/publ/126865