Title: Persistence and Degradation of Propineb in Rice (Oryza sativa L.)
Abstract: The persistence and degradation of propineb was studied in rice plant, straw, grain and soil following application of propineb at two different doses (700 g a.i. ha−1 and 1400 g a.i. ha−1) and at 20 and 30 d after transplanting (DAT). The initial deposits of propineb residues ranged from 21.69 to 58.9 μg g−1 and more than 80% of propineb residue was dissipated within 7 d irrespective of dose and crop stage. The dissipation of propineb residues followed first order reaction kinetics. Propineb residues on rice leaves dissipated with a half-life of 2.0 and 2.3 d when applied at 20 DAT and 1.2 and 1.6 d when applied at 30 DAT at the dose rates of 700 and 1400 g a.i. ha−1 respectively. The propineb residues were found below Limit of Quantification (LOQ) of 0.19 μg g−1 in the rice straw, grains, husk and soil samples collected at harvesting time.
Publication Year: 2012
Publication Date: 2012-01-01
Language: en
Type: article
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Cited By Count: 1
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