Author(s): A. SIREESHA, P. C. RAO, P. V. RAO, G. SWAPNA AND C. S. RAMALAKSHMI

Abstract: Field experiment was conducted to study the persistence of pendimethalin and oxyfluorfen in soil and its residues in edible parts of raddish. At harvest in both the seasons more than 98% of initial deposit of pendimethalin was dissipated and observed half life in raddish field was 6.45 days and 10.03 days for pendimethalin applied @ 0.5 and 0.75 kg ha-1 respectively. More than 60 per cent of the initial deposit of oxyfluorfen was dissipated at the time of harvest of crop and 6.96 days and 12.26 days of half life was observed at 0.1 and 0.15 kg ha-1 of oxyfluorfen application respectively. In raddish tubers the detected residues of pendimethalin and oxyfluorfen were below maximum residue limits (MRL values).

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