Low-weight carboxylic acids as potential risk factor of compost phytotoxicity
Himanen, M., Prochazchka, P., & Hänninen, K. (2009). Low-weight carboxylic acids as potential risk factor of compost phytotoxicity. In K. Vakkilainen, & V. Pulkkila (Eds.), Proceedings of 09 Finnish Conference of Environmental Science, 14-15 May, 2009, Lahti, Finland (pp. 100). Markprint Oy. Finnish Society of Environmental Sciences.
Published inFinnish Society of Environmental Sciences
© Authors & Finnish Society of Environmental Sciences
Being intermediates of organic matter degradation, low-weight carboxylic acids (LWCA) can occur at phytotoxic concentrations on bioactive soils or in the processed organic material applied to soil. While toxicity potentials and mixture effects of LWCA are still poorly known, the potential phytotoxicity of the biomaterials is difficult to assess. In the study effective concentrations (EC) of formic, acetic and propionic acids at non adjusted pH were obtained in short-term germination assays (48 h for cress, Lepidium sativum, and 120 h for ryegrass Lolium multiflorum) and subchronic growth assays (21d). Based on the EC values, LWCA inhibited more strongly plant growth than seed germination. In mixtures each acid acted separately without interaction other than additivity. Toxicity of LWCA increased with increase in carbon chain length, being true also in mixtures. Nontoxic concentration (EC10) for equimolar mixture of formic, acetic and propionic acid was calculated to be below 1000 mg/kg dm. ...
Parent publication ISBN
Is part of publicationProceedings of 09 Finnish Conference of Environmental Science, 14-15 May, 2009, Lahti, Finland
Publication in research information system
MetadataShow full item record
Showing items with similar title or keywords.
Himanen, Marina (University of Jyväskylä, 2013)
Järvistö, Johanna (2014)Kompostia käytetään maaparannusaineena tai kasvualustan osana. Hajoava kompostiaines ja mädätysjäännös sisältävät kuitenkin lyhytketjuisia karboksyylihappoja, jotka ovat kasveille haitallisia. Karboksyylihapot kuitenkin ...
Hassani, Marjaana; Vallius, Elisa; Rasi, Saija; Sormunen, Kai (MDPI AG, 2021)Invasive plant species threaten native species and habitats causing ecologic, economic and social burden. When creating climate friendly solutions by utilizing plant biomasses in biogas and fertilizer production, safety ...
Lehtinen, Jenni (University of Jyväskylä, 2012)
Complexes of Glycolic Acid with Nitrogen Isolated in Argon Matrices. II : Vibrational Overtone Excitations Kosendiak, Iwona; Ahokas, Jussi M.E.; Krupa, Justyna; Lundell, Jan; Wierzejewska, Maria (MDPI, 2019)Structural changes of glycolic acid (GA) complex with nitrogen induced by selective overtone excitation of the νOH mode were followed in argon matrices using FTIR spectroscopy. For the most stable SSC1 complex present in ...