Effect of herbicide mixtures in controlling the weeds accompanying for the wheat
A field experiment was carried out in the fields of a farmer in Wasit Governorate - Al-Shahimiya district within the action plan of the National Program for the Development of Wheat Agriculture in Iraq - the Ministry of Agriculture, with the aim of knowing a combination of Traxos herbicide with several hericides (Traxos + Hormony) and (Traxos + Lancelot). and (Traxos + Granstar). In the control of wild barley and other weeds associated with the wheat crop. A randomized complete block design (RCBD) with three replications was used. Treatment H6 gave the lowest weed density of wild barley and broad-leaved weeds, and the total weed density, with control percentage of 98.5%, 86.2%, and 94.9%, respectively. The two treatments H2 and H6 also achieved the lowest density of narrow-leaved weeds, which amounted to 0.0 plants. m-2 For both of them, with a control rate of 100%, compared to the weedy treatment, which gave the highest density of Abu Suef weed, narrow and broad weeds, and the total density. Treatment H6 achieved the lowest dry weight of wild barley weed and broad-leaved weeds and the total dry weight of weeds, and the inhibition percentage was 98.0%, 89.0%, and 94.0%, respectively. The efficiency of the two treatments H2 and H6 was similar in reducing the dry weight of narrow -leaved weeds, which amounted to 0.0 g.m-2, and the percentage of inhibition was 100% for both treatments, while the weed treatment, which gave the highest dry weight of the Abu Suef weed and narrow and broad weeds, gave the total density of 44.2 and 46. 2, 56.6 and 147.0 g.m-2, respectively. It is concluded, that the use of herbicide mixtures led to a reduction in the number and dry weight of weeds according to their specialization, as it had the best effect with barley weed when treated with H4, while the treatment H5 had the highest effect with broad-leaved weeds.