Comparison of pendimethalin EC 33% herbicide (Titan) with metribuzin and atrazine in the control of weeds in sugarcane fields
Subject Areas : Weed Research JournalALI EHSANIPOUR 1 , Hakim Naseri 2 , Payam Zali kakesh 3 , Davood Neisi 4
1 - Dehkhoda Sugarcane Agro-Industry Company, Department of Agricultural Studies, Ahvaz, Iran.
2 - Dehkhoda Sugarcane Agro-Industry Company, Ahvaz, Iran.
3 - 3. Applied Studies Manager, Dehkhoda Sugarcane Agro-Industry Company (Master of Science Agricultural)
4 - Dehkhoda Sugarcane Agro-Industry Company, Ahvaz, Iran
Keywords: Sugarcane, Herbicide use rotation, Pre emergence, Metribuzin, pendimethalin,
Abstract :
Sugarcane has a vegetative stage sensitive to weed competition, which is about three to six weeks from the time of planting in the hot season. Weed control is very necessary at the beginning of the sugarcane growing season before the sugarcane canopy closes. In order to investigate the density, dry weight and EWRC index of broad-leaved and narrow-leaved weeds after using pendimethalin EC 33% (Titan) herbicide pre-emergence with the aim of establishing rotation in the use of herbicides in sugarcane fields, An experiment was conducted in 2022-2023, it was conducted in the Dehkhoda Sugarcane Agro-Industry Company in Ahvaz city of Khuzestan province, in the form of a randomized complete block design. In the experiment, checking the traits including the average density and dry weight of broad-leaved and narrow-leaved weeds in five square meters, and the EWRC index of broad-leaved and narrow-leaved weeds on 20/2/2023 and 31/3/2023. Spraying experiments were carried out with six treatments and three replications. The treatments of the experiment include control (without spraying), Pendimethalin 4 lit/ha, Pendimethalin 3 lit/ha, Pendimethalin 3.5 lit/ha, Pendimethalin 3 lit/ha + metribuzin 1 kg/ha, Atrazine 2 kg/ha + metribuzin 2 kg/ha (Conventional field spraying).The results showed that different treatments had a significant effect on the measured traits at the probability level of 1%. According to the total results and also the necessity of herbicide use rotation, the use of Titan herbicide with a dose of 3.5 to 4 liters per hectare is recommended, especially in late harvest fields.