Department of Agronomy, Forages and Grassland Management, College of Agriculture, CSK Himachal Pradesh Krishi Viswavidyalaya, Palampur-176 062, Himachal Pradesh, India
*Corresponding author E-mail: sharma_neelam29@rediffmail.com
Online published on 27 June, 2014.
Pretilachlor applied 6 days after transplanting @ half the recommended doses (0.375 kg ha−1), recommended dose (0.75 kg ha−1) and double the recommended dose (1.5 kg ha−1) persisted in soil up to 60, 75 and 90 days, respectively. Disappearance of pretilachlor fitted a first order kinetics decay curve at all the three levels of application with the half life varying from 11.6 to 15.8 days. Pretilachlor residues in rice straw and grain at highest dose (1.5 kg ha−1) were below MRL.
Pretilachlor, rice, residues, persistence, soil
