Effectiveness of herbicides against weeds and their residual effect on soil and carrot (Daucus carota)

V P S PANGHAL; ANIL DUHAN; D S DUHAN; POOJA RANI

doi:10.56093/ijas.v89i10.94591

Authors

V P S PANGHAL Assistant Scientist, CCS Haryana Agricultural University, Hisar, Haryana 125 004, India
ANIL DUHAN Assistant Scientist, CCS Haryana Agricultural University, Hisar, Haryana 125 004, India
D S DUHAN Assistant Scientist, CCS Haryana Agricultural University, Hisar, Haryana 125 004, India
POOJA RANI Ph D Scholar, CCS Haryana Agricultural University, Hisar, India.

https://doi.org/10.56093/ijas.v89i10.94591

Keywords:

Carrot, GC-MS/MS, Oxyfluorfen, Oxadiargyl, Pendimethalin, Phytotoxicity

Abstract

An experiment was conducted to study the efficacy of different herbicides for weed control in carrot (Daucus carota L.) and their residual effect on soil as well as on crop, at Research Farm of CCS Haryana Agricultural University, Hisar (2012â€“13 and 2013â€“14). Thirteen treatments includes pre-emergence application of three herbicides, viz. oxyfluorfen and oxadiargyl (80, 100, 120 g/ha and 100 g/ha + HW), and pendimethalin (1.0 kg/ha and 1.0 kg/ha + HW), two weedings at 30 and 60 DAS, weed free and weedy check (control) are replicated three times in Randomized Block Design. Residues of these herbicides were estimated in soil and root samples, using GC-MS/MS. Based on two years pooled data it was concluded that pre-emergence application of oxadiargyl 100 g/ha, oxyfluorfen 100 g/ha and pendimethalin 1.0 kg/ha integrated with one hand weeding at 30 DAS resulted in effective weed control (70â€“72%) in carrot without any phytotoxicity on crop and gave 79.5, 77.2 and 76.4% higher root yield over weedy check, respectively. The residues of these herbicides in soil, carrot root as well as in foliage were found below detectable level at the time of harvest.

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