Leaching and degradation of ¹³C₂-¹⁵N-glyphosate in field lysimeters.

ABSTRACT: Glyphosate (GLYP), the globally most important herbicide, may have effects in various compartments of the environment such as soil and water. Although laboratory studies showed fast microbial degradation and a low leaching potential, it is often detected in various environmental compartments, but pathways are unknown. Therefore, the objective was to study GLYP leaching and transformations in a lysimeter field experiment over a study period of one hydrological year using non-radioactive ¹³C₂-¹⁵N-GLYP labelling and maize cultivation. ¹⁵N and ¹³C were selectively measured using isotopic ratio mass spectrometry (IR-MS) in leachates, soil, and plant material. Additionally, HPLC coupled to tandem mass spectrometry (HPLC-MS/MS) was used for q

SUBMITTER: Gros P 

PROVIDER: S-EPMC6970956 | biostudies-literature | 2020 Jan

REPOSITORIES: biostudies-literature