Vicia narbonensis and Vicia hyrcanica as newly emerged weeds represent a great constraint for agricultural production due to their remarkable adaptability and their ability to compete with rain-fed crops. Generally, information on weed biology is crucial for their effective management. Hence, this study was conducted to evaluate the phenological development, growth, and fecundity of V. narbonensis and V. hyrcanica over 2 years (2019–2020) at a rain-fed farm in Kuzaran region, Kermanshah province, Iran. Results showed that with the establishment of V. narbonensis and V. hyrcanica in the winter when compared with spring, the amount of biomass production increased significantly. The phenological pattern of both weedy species seems to be affected by the establishment time, and plants established in February were always superior to those established in March and April. In general, the results of this study emphasize the importance of controlling the early-established plants of V. narbonensis and V. hyrcanica.. Our study suggests that rain-fed field crop should be planted late in case a field is heavily infested with these two weed species.

纳博野豌豆和海蚕豆作为新出现的杂草，由于其显着的适应性和与雨养作物的竞争能力，对农业生产构成了很大的限制。一般来说，杂草生物学信息对于有效管理至关重要。因此，本研究旨在评估伊朗克尔曼沙赫省库扎兰地区雨养农场 2 年（2019-2020 年）内的V. narbonensis和V. hyrcanica的物候发育、生长和繁殖力。结果表明，冬季V. narbonensis和V. hyrcanica的建立两种杂草物种的物候模式似乎都受到建树时间的影响，二月建树的植物总是优于三月和四月建树的植物。总的来说，这项研究的结果强调了控制早期生长的V. narbonensis和V. hyrcanica植物的重要性。我们的研究表明，雨养大田作物应该推迟种植，以防田地受到这些作物的严重侵染。两种杂草。