ارزیابی مدیریت تلفیقی علف‌های هرز در مزارع کنجد خوزستان

Sesame with its scientific name (Sesamum indica) is one of the summer oil crops in the northern region of Khuzestan. In the year 2022-2023, the area under sesame culture in Khuzestan province is estimated to be 18000 hectares. One of the problems of increasing the area under culture and the yield of this crop is the presence of weeds that compete with crops for environmental resources. Based on this, research on the control of weeds in sesame fields seems necessary. This study was carried out in 2021-2022 As a strip plot with 20 treatments in four repetitions based on the statistical design of randomized complete blocks in Mian-Ab agricultural and industry company fields. Vertical factor, Cultivator application in four levels including: 1- Shovel cultivator. 2- Blade cultivator. 3- rolling cultivator. 4- No cultivator. horizontal factor, herbicides in five levels including: 1-Trifluralin 2 lit/ha soil incorporated + Haloxyfop R-methyl 1 lit/ha post-emergence. 2- Alachlor 5 lit/ha pre-emergence. 3- Pendimethalin 4 lit/ha pre-emergence. 4- Oxyfluorfen 2 lit/ha post-emergence. 5-weed free check. After applying different treatments of Cultivator and herbicide, the density and biomass of dominant weeds were evaluated, the sesame yield was weighed too.The variance analysis showed that there was a significant difference between cultivation treatments and herbicide treatments in weed control and sesame yield. The results of the research showed that between the different cultivator treatments, the shovel cultivator with the production of 934 kg/ha was the highest. It had the yield of sesame seeds and between the different herbicide treatments, the application of Alachlor herbicide 5 lit/ha in pre-emergence, with 91.78% weed density control, 94.72% weed biomass control and 957 Kg/ha sesame seed yield was the superior. The combination of these two mechanical treatment and chemical treatment is recommended for the integrated control of weeds in the sesame fields of Khuzestan province.