Effect of Subirrigation on the Mobility of Atrazine

Pesticide residues in Hungarian soils

“…There was a sharp contrast found between the atrazine residues in the 0.4 m subirrigation versus 0.8 m subirrigation and free drainage treatment. This indicates that atrazine dissipation mostly occurs at the soil root zone depths, and that only shallow subirrigation could significantly reduce atrazine residues in this sandy soil by maintaining higher moisture content in the crop root zone (Jebellie and Prasher, 1999).…”

Nonpoint Sources

“…The total losses after continual leaching, however, were greater under conventional tillage, possibly due to more rapid degradation in the reduced tillage system. Subirrigation was found to substantially increase dissipation and reduce leaching of atrazine applied to packed soil columns growing corn (Jebellie and Prasher, 1999).…”