University of Tabriz Journal of Agricultural Science and Sustainable Production 2476-4310 32 2 2022 08 06 Effect of Winter Wheat Intercropped With Vetch and Clover on Weed Population under Different Soil Tillage Systems Effect of Winter Wheat Intercropped With Vetch and Clover on Weed Population under Different Soil Tillage Systems 197 214 15008 10.22034/saps.2021.45776.2675 FA Ekhlas Amini Department of Agronomy, Faculty of Agriculture, Ilam University, Ilam, Iran Alireza Toob Emanuele Radicetti Department of Chemical and Pharmaceutical Sciences, University of Ferrara,Ferrara, Italy Journal Article 2021 04 30 Background and Objective: Environmental problems due to overuse of herbicides and resistance of weeds to them have made the need to develop agricultural strategies as a secure and less costly method for weed management one of the sustainable agricultural priorities. This study was carried out to study the effect of intercropping of Persian clover or vetch as cover crop with wheat under different soil disturbance regimes on population dynamics of weeds to use as ecological weed management systems. <br />Materials and methods: The experiment was conducted as split plots in the form of a randomized complete block design with three replications in the research farm of Ilam University during the two cropping years of 2018/19 and 2019/20. Tillage regimes as the main factor in three levels (conventional tillage, minimal tillage and no cultivation) and different intercropping patterns including monocultures wheat, clover, vetch, additive intercropping of 100% wheat + 50% clover, additive intercropping of 100% wheat + 50%vetch and weedy were considered as sub-factors.<br />Results: The weed density was reduced up to 80.7% in intercropping of wheat+vetch and to 66% in intercropping of wheat+clover under no tillage system. The respected values were, respectively, 91.6 and 77.7% under reduced tillage and 80 and 70.8% under conventional tillage systems. The Shannon and Wiener Brillouin, <br />Conclusion: Intercropping of wheat and cover crops can be applied to reduce efficiently weed density and also to affect weed diversity. This also can be an important step toward sustainable agriculture. Background and Objective: Environmental problems due to overuse of herbicides and resistance of weeds to them have made the need to develop agricultural strategies as a secure and less costly method for weed management one of the sustainable agricultural priorities. This study was carried out to study the effect of intercropping of Persian clover or vetch as cover crop with wheat under different soil disturbance regimes on population dynamics of weeds to use as ecological weed management systems. <br />Materials and methods: The experiment was conducted as split plots in the form of a randomized complete block design with three replications in the research farm of Ilam University during the two cropping years of 2018/19 and 2019/20. Tillage regimes as the main factor in three levels (conventional tillage, minimal tillage and no cultivation) and different intercropping patterns including monocultures wheat, clover, vetch, additive intercropping of 100% wheat + 50% clover, additive intercropping of 100% wheat + 50%vetch and weedy were considered as sub-factors.<br />Results: The weed density was reduced up to 80.7% in intercropping of wheat+vetch and to 66% in intercropping of wheat+clover under no tillage system. The respected values were, respectively, 91.6 and 77.7% under reduced tillage and 80 and 70.8% under conventional tillage systems. The Shannon and Wiener Brillouin, <br />Conclusion: Intercropping of wheat and cover crops can be applied to reduce efficiently weed density and also to affect weed diversity. This also can be an important step toward sustainable agriculture. https://sustainagriculture.tabrizu.ac.ir/article_15008_d1256fdbb5eb36739d84d83edf512ed7.pdf