Evaluating of some Herbicides to Control Bermudagrass (Cynodon dactylon) and Field Bindweed (Convolvulus arvensis) in Established Alfalfa (Medicago sativa) | ||
| دانش علفهای هرز ایران | ||
| Article 9, Volume 9, Issue 2, January 2014, Pages 201-211 PDF (223.54 K) | ||
| Authors | ||
| Ebrahim Mamnoei* ; Mohammad Ali Baghestani | ||
| Abstract | ||
| In order to evaluate the effect of some herbicides for weed control in established alfalfa, an experiment was conducted in a randomized complete blocks design with 4 replications in the Agricultural Research Center of Jiroft, for two years from 2009 to 2011. Treatments included Pursuit (imazethapyr SL 10%) at 0.4, 0.6, 0.8 and 1 Lit/ha plus cytogate at 1 Lit/ha, plus Focus (cycloxydim EC 10%) at 2 Lit/ha, Stomp (pendimethalin EC 33%) at 2.5 and 3 Lit/ha, Bazagran (bentazon SL 48%) at 3 L/ha plus focus at 2 Lit/ha, Senkor (metribuzin WP 70%) at 1 kg/ha, Butress (2,4,DB 42.3 % EC) at 2, 2.5, 3, 3.5 li/ha and weed- free as a check. The effect of herbicides on alfalfa biomass and weed biomass and density was studied from 3 harvests. Herbicides had significant effect on the density and biomass of bermudagrass (Cynodon dactylon) and field bindweed (Convolvulus arvensis). Herbicide cycloxydim, at 2 L/ha, was best to control bermudagrass, reducing density by 47-64% and dry weight by 47-62%. The best treatment to control field bindweed was 2,4-DB at 3.5 L/ha, reducing density by 38-42% and dry weight by 36-39%. The highest alfalfa yield was obtained with imazethapyr at 0.8 and 1 L/ha plus cytogate at 1 Lit/ha, plus cycloxydim at 2 Lit/ha. | ||
| Keywords | ||
| Alfalfa harvesting; bentazon; pendimethalin; imazethapyr; 2; 4-DB | ||
| References | ||
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