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Agronomic Evaluation of Mechanical and Chemical Weed Management for Reducing Use of Herbicides in Single vs. Twin-Row Sugar Beet

Meisam Zargar, Elena Pakina, and Petr Dokukin
Department of Plant Protection, People’s Friendship University, Moscow, Russia
Abstract—In order to evaluate the effects of chemical and non-chemical weed management in in sugar beet, an experiment was carried out at a research farm in Karaj. The experimental factors were arranged in split–split plot based on a complete randomized block design with four replications. Planting pattern was allotted as main-plot (single row planting with 50cm row width, single row planting with 60cm row width and twin row planting with 60cm row width), time of mechanical control as sub–plot (mechanical weed control at 4 leaves stage, 10 leaves stage and 14 leaves stage of sugar beet), and herbicides as sub–sub plot (metamitron plus combination of phenmedipham + desmedipham + ethofumesat and triflusulfuron metil plus combination of phenmedipham + desmedipham + ethofumesat). The results showed that planting pattern had proper effect on weeds biomass that best results were obtained in twin row planting 60cm. Also, mechanical control at 4 leaves stage of sugar beet had the best effect on weeds density and biomass. metamitron plus combination of phenmedipham + desmedipham + ethofumesat had also the best effect on weeds density and biomass.
 
Index Terms—weed, herbicide, planting pattern, mechanical control

Cite: Meisam Zargar, Elena Pakina, and Petr Dokukin, "Agronomic Evaluation of Mechanical and Chemical Weed Management for Reducing Use of Herbicides in Single vs. Twin-Row Sugar Beet," Journal of Advanced Agricultural Technologies, Vol. 4, No. 1, pp. 62-67, March 2017. Doi: 10.18178/joaat.4.1.62-67
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