The influence of soil type and tillage system on selected herbicides fate
2009
Toth, S.,Slovenske Centrum Polnohospodarskeho Vyskumu, Michalovce (Slovak Republic). Ustav Agroekologie | Danilovic, M.,Slovenske Centrum Polnohospodarskeho Vyskumu, Michalovce (Slovak Republic). Ustav Agroekologie
The study compares the results of investigation of acetochlor (GC/MS), dicamba (HPLC/DAD), metribuzin (GC/ECD), S-metolachlor (GC/ECD) and terbuthylazine (GC/ECD) fate from topsoil (5-30 cm) and subsoil (50-60 cm) samples according to no-till technology, reduced agrotechnique and conventional tillage. A long-term stationary field trial was established on Gleyic Fluvisol and Eutric Fluvisol in the East-Slovakian Lowland during the years 2005-2007. All acetochlor and S-metolachlor residual analyses were negative, which was connected mainly with high vapour pressure or with high detection limit, respectively. Dicamba, metribuzin and terbuthylazine residue contents in soil depended on the tillage system used, weather (year) and soil type. Dicamba had the highest mobility and terbuthylazine the highest sorption ability.
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