@Sveta Toza
Glyphosate adsorbs strongly to soil and is not expected to move vertically below the six inch soil layer; residues are expected to be immobile in soil. Glyphosate is readily degraded by soil microbes to
AMPA, which is degraded to
carbon dioxide. Glyphosate and AMPA are not likely to move to ground water due to their strong adsorptive characteristics. However, glyphosate does have the potential to contaminate surface waters due to its aquatic use patterns and through erosion, as it adsorbs to soil particles suspended in runoff. If glyphosate reached surface water, it would not be broken down readily by water or sunlight.[SUP]
[19][/SUP]
The median half-life of glyphosate in soil ranges between 2 and 197 days; a typical field half-life of 47 days has been suggested. Soil and climate conditions affect glyphosate's persistence in soil. The median half-life of glyphosate in water varies from a few days to 91 days.
Izvinjavam se clanak je na engleskom, ali snaci ce te se vec... neko vreme poluraspada koje se predlaze je 47 dana ...
Evo i male dopune za Vas @Sveta Toza, pogledajte ovu disertaciju moguce je da ce te tu naci odgovor koji trazite. Pozdrav
PROMENE MIKROBIOLOŠKE AKTIVNOSTI ZEMLJIŠTA NAKON PRIMENE HERBICIDA
http://www.uns.ac.rs/sr/doktorske/ljiljanaSantric/disertacija.pdf
I za sam kraj jos jedan detalj :
The authors also concluded that field studies conducted in agricultural and forest soils (13 studies, five countries, 47 different sites) indicated an average half-life of 32 days. In 2002,
the European Commission completed an assessment of fate and behavior of glyphos
ate in environment (European Commission 2002). Under a wide range of climatic conditions
found in the U.S., Canada, and Europe, the mean half-life for glyphosate degradation in
field soil was reported to be 30 days, with a range from 1 to 130 days.
http://www.monsanto.com/products/documents/glyphosate-background-materials
/gly_halflife_bkg.pdf
Licno, ne bih se dvoumio oko setve psenice na toj parceli..
Pozdrav, Milan