Volatilisation of triallate as affected by soil texture and air velocity.
The rate of volatilisation of the formulated herbicide triallate was investigated in a wind tunnel under controlled wind-speed conditions. An experimental set-up is described which allows the monitoring of wind speed (w.s.), soil-water content, and the temperature of air and soil. A system controlling soil-water content is also described. The influence of air velocity and soil texture was investigated measuring the cumulative volatilisation losses of triallate from soil. The herbicide volatilisation losses after application ranged from 40% at 3 m/s to 53% at 9 m/s for loam soil and from 60% at 3 m/s to 73% at 9 m/s for sandy soil.
Atienza
J
J
Servicio de Investigación, Desarrollo y Tecnología Agraria, Valladolid, Spain. julian.atienza@cag.jcyl.es
Tabernero
M T
MT
Alvarez-Benedí
J
J
Sanz
M
M
D000388:Air; D000393:Air Pollutants / Q000032:analysis / Q000737:chemistry; D006540:Herbicides / Q000032:analysis / Q000737:chemistry*; D012989:Soil Pollutants / Q000032:analysis; D013997:Time Factors; D014214:Triallate / Q000032:analysis / Q000737:chemistry*; D014835:Volatilization
D000393:Air Pollutants; D006540:Herbicides; D012989:Soil Pollutants; D014214:Triallate