Details zur Publikation

Kategorie Textpublikation
Referenztyp Zeitschriften
DOI 10.1016/j.geoderma.2018.06.011
Volltext Akzeptiertes Manuskript
Titel (primär) Impact of agricultural practices on plant-available silicon
Autor Klotzbücher, T.; Klotzbücher, A.; Merbach, I.; Mikutta, R.
Journal / Serie Geoderma
Erscheinungsjahr 2018
Department BZF
Band/Volume 331
Seite von 15
Seite bis 17
Sprache englisch
Keywords Silicon cycling; Fertilization; Liming; Chernozem
Abstract Silicon (Si) is a beneficial nutrient for many plants, including major crop species. Yet, the impacts of agricultural practices on Si cycling have been hardly studied. We investigated the effects of long-term fertilizer (farmyard manure, NPK) and/or lime applications on concentrations of acetate-extractable Si (Siacetate; i.e., potentially mobile and plant-available Si) in a Chernozem topsoil (Bad Lauchstädt, Germany). The Siacetate concentrations were between 122 and 292 mg Si kg−1, and thus, larger than `critical values` considered to trigger Si limitation of plant growth. We found positive relationships between Siacetate concentrations and soil pH, which might be explained by pH-dependence of the phytolith solubility as well as of the sorption of Si to mineral surfaces. Our data suggest that differing agricultural practices affects Si fluxes and availability in soil by affecting the soil pH.
dauerhafte UFZ-Verlinkung
Klotzbücher, T., Klotzbücher, A., Merbach, I., Mikutta, R. (2018):
Impact of agricultural practices on plant-available silicon
Geoderma 331 , 15 - 17