Efficiency of post-emergence herbicides and stale seedbed integration in weed control in potato fields in Karaj region

Document Type : Research Paper

Authors

1 Research Assistant at Gonbad-e Kavus Agricultural Research Station, Gonbad-Kavous, Iran

2 Department of Agronomy and Plant Breeding, University of Tehran, Iran

Abstract

Due to the environmental hazards and the herbicide resistance, it is necessary to investigate the integration of herbicides with other non-chemical methods such as stale seedbed (SSB) in weed control of the potato fields. Therefore, a split plot experiment based on randomized complete block design with three replications was conducted at the Research Farm of College of Agriculture and Natural Resources of University of Tehran in 2013 and 2014. The main plots were conventional seedbed preparation, SSB + paraquat, and SSB + glyphosate and the sub plots were four herbicides including rimsulfuron, metribuzin, pendimethalin, and rimsulfuron + nicosulfuron. The results of interaction effects showed the best weed control treatment was SSB + paraquat and application of metribuzin that reduced weed density (95.4%) and total dry weight  (83.3%) and produced 31.8 T potato tuber ha1-. Therefore, this treatment was the most cost-effective weed control treatments in potato. Because in addition to better control of weeds than other treatments studied, it produced the higher yield.

Keywords


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