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Fate of Atrazine in Sandy Soil Cropped with Sorghum

^a Center for Water Quality, Florida A&M Univ., Tallahassee, FL 32307-4100
^b Dep. of Soil and Water Science, Univ. of Florida, Gainesville, FL 32611-0290
^c Dep. of Agronomy, Univ. of Florida, Gainesville, FL 32611-0500

View larger version (32K): [in a new window]   Fig. 1. Daily rainfall and application and sampling dates of atrazine and bromide at the Irrigation Research and Education Park during the 1991 growing season

View larger version (27K): [in a new window]   Fig. 2. Linear adsorption isotherms of atrazine for soils from different depths at the Irrigation and Education Park in Gainesville, Florida

View larger version (22K): [in a new window]   Fig. 3. Degradation of atrazine in Millihopper topsoil (A) and subsoil (B) from the Irrigation and Education Park under controlled laboratory conditions

View larger version (22K): [in a new window]   Fig. 4. Water stored within the 0- to 90-cm soil depth in a sorghum field under three water management regimes between 13 May and 15 July 1991

View larger version (15K): [in a new window]   Fig. 5. Bromide concentrations within the 0- to 90-cm soil depth over time in a sorghum field under optimum irrigation in Gainesville, Florida

View larger version (35K): [in a new window]   Fig. 6. Atrazine concentrations at different soil depths under three water management regimes at the Irrigation and Education Park in Gainesville, Florida

View larger version (20K): [in a new window]   Fig. 7. Atrazine concentrations within the 0- to 90-cm soil depth in a sorghum field under three water management regimes in Gainesville, Florida