نوع مقاله : مقاله مروری
نویسنده
استاد گروه اگروتکنولوژی دانشکده کشاورزی دانشگاه فردوسی مشهد
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسنده [English]
Climate change, as one of the main factors transforming Iran's agricultural systems, especially in arid and semi-arid regions, has caused fundamental changes in the dynamics and management of weeds. Increased temperature, decreased rainfall, frequent droughts, and increased carbon dioxide concentrations have caused the spread of thermophilic and drought-resistant weed species, changed their species composition, and increased their growth and competitiveness against crops. At the same time, traditional weed control methods have lost their effectiveness. Chemical control is facing a decrease in the effectiveness of herbicides under conditions of increased CO₂, the emergence of resistance in weeds, and environmental impacts. Mechanical control is also limited due to inconsistency in germination and changing soil conditions, and biological control is less effective due to the incompatibility of the life cycle of the control agent with the target weed and the reduction of host specialization. In the meantime, it is necessary to use a combination of climate-resistant varieties, diverse crop rotations, cover crops, precision agriculture technologies such as GIS, drones, and conservation agriculture. The success of this approach requires farmer training, long-term monitoring, and government support. Only with a comprehensive and technological approach can Iran's agricultural production be maintained in the face of climate change.
کلیدواژهها [English]
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