Investigating the effectiveness of oxyfluorfen, cetoxydim, bentazone and penoxolam herbicides along with the use of additives in the control of purple nutsedge (Cyperus rotundus L.) in onion (Allium cepa)

Subject Areas : Weed Sciences

Mahdieh Amirinejad ¹ , Semane Motamedinia ² , behrouz KHALIL TAHMASEBI ³ , Mohammad Roozkhosh ⁴

1 - Department of Agronomy, Faculty of Agriculture, University of Jiroft, Jiroft, Iran
2 - Department of Agronomy, Faculty of Agriculture, University of Jiroft, Jiroft, Iran
3 - Assistant professor, South Kerman Agricultural and Natural Resources Research and Education Center (AREEO), Jiroft, Iran.
4 - Ph.D. Student of Weed science, Department of Agrotechnology, College of Agriculture, Ferdowsi University of Mashhad, Iran

Received: 2023-11-22 Accepted : 2024-01-11 Published : 2023-08-23

Keywords: Vigar plus, performance, Herbicide composition, additive, Oil,

Abstract :

Purple nutsedge is one of the harmful weeds in onion (Allium cepa L.) fields. This project aims to investigate the effectiveness of oxyfluorfen, cetoxydim, bentazone and penoxolam herbicides along with the use of adjuvant. The use of additives is one of the most important effective ways to increase the efficiency and reduce the amount of herbicides. It was carried out in the form of a randomized complete block design with 11 treatments and three replications in industrial and cultivation fields in the year of 2021. The results of the project showed that the effect of different herbicides on the traits of Cyperus rotundus was significant and significantly reduced the number of shoots, number of tubers, above and below fresh and dry weight of shoots of Cyperus rotundus. The best treatment using bentazone + oil and cetoxydim + bentazone was obtained, yeild onion highest was obtained by hand weeding (47.272 ton. ha) and Bentazone + oil: Sethoxydim: Bentazone (43.636 ton. ha). Which was not significantly different from the control treatment (weed free). Therefore, the combination of the post-emergence application of bentazon + oil and cetoxydim + bentazone can be effective for controlling the purple nutsedge.