Fig. 3. Total atrazine uptake and the distribution of the degradation products in forage grasses after 25 d. Means followed by the same letter do not differ significantly at a 90% confidence level using LSD test ( = 0.1). ATR, atrazine; DEA, deethylatrazine; DEHA, deethylhydroxyatrazine; DIA, deisopropylatrazine; DIHA, deisopropylhydroxyatrazine; HA, hydroxyatrazine.