Document Type : Research Paper
Authors
1
Assistant Professor of Fars Agricultural and Natural Resources Research and Education Center, AREEO, Darab, Iran
2
Research Instructor of Soil and Water Department, Kerman Agricultural and Natural Resources Research and Education Center, AREEO, Kerman, Iran.
3
Ph.D. Student of Weed Science, Department of Plant Production and Genetics, Faculty of Agriculture and Natural Resources, University of Mohaghegh Ardabili, Iran
4
Professor of Weed Science, Department of Plant Production and Genetics, Faculty of Agriculture and Natural Resources, University of Mohaghegh Ardabili, Iran
10.22034/ijws.2024.364935.1451
Abstract
In order to evaluate the effect of different herbicides on nutsedge (Cyperus rotundus L.), an experiment was conducted as a randomized complete block design with nine treatments and three replications in fields of Institute of Agricultural Research and Natural Resources at Jiroft on 2019-2021. The treatments included Oxyfluorfen at 1.5 and 2 L ha-1, Oxadiazon at 2.5 and 3 L ha-1, Pendimethalin at 2.5 and 3 L ha-1, Bentazon at 2 and 3 L ha-1 and weed free. The results demonstrated that herbicides caused to reduce nutsedge density and aerial and underground biomass. The best treatment was obtained Bentazon at 3 L ha-1 and Oxyfluorfen at 2 L ha-1 in nudsedge control. So that, Bentazon at 3 L ha-1 reduced 74, 77 and 90 % aerial biomass of nutsedge at 20, 30 and 40 days after treatment. Also, it reduced underground biomass 83% and it was desirable treatment after weed free. That increased marketable onion yield (7.9 Kg m-2) 60% in comparison to weedy.
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