ارزیابی کارایی متریبوزین+ایندازیفلم در مهار علف‌های هرز نیشکر.

Competition with weeds occurs in the initial stage of sugarcane growth, and if weeds are not controlled in the critical period (four months after planting), the reduction in sugarcane yield ranges from 20 to 40%. Since the main option of weed control in sugarcane Agro Industry in Iran is chemical control. Therefore, the present study was conducted with the aim of investigating the efficiency of mixing two herbicides metribuzin (WP70%) and indaziflam (SC50%) in the form of a randomized complete block design with three replications. The experimental treatments were: indaziflam 150 ml/ha in the form of sugarcane pre-growth, metribuzin (2 kg/ha in the form of sugarcane pre-growth), tebutioron (2 liters/ha in the form of sugar cane pre-growth), mixture Indaziflam and metribuzin (150 + 2 ml/kg/ha), weed-infested control and weed-free control (weeds). The evaluations were carried out in three stages and include: measurement of sugarcane height, number of sugarcane sprouts, inhibition rate of broadleaf and longleaf weeds, density of weeds, dry weight of weeds and visual scoring. was The evaluation results of weed density, weed dry weight and visual observations were significant at the 5% level. The results showed that the use of herbicides had no adverse effect on the growth and germination of sugarcane stalks. In the first and second evaluation, they had a very good effect (≥ 82%) on weeds and were able to control the weed population. In the third evaluation, the highest (90 percent) and lowest (54.33 percent) effects on weeds belonged to indaziflam + metribuzin and tebutione, respectively. Considering the limited range of herbicides available in sugarcane and the reduction of the effectiveness of some herbicides such as Tebuteren with the passage of time, it seems that the application of a mixture of two herbicides Metribuzin and Indaziflam according to the soil of application The presence of both herbicides can control a wider range of sugarcane weeds.