نوع مقاله : مقاله پژوهشی
نویسندگان
1 هات علمی
2 گروه مهندسی تولید و ژنتیک گیاهی، دانشکده کشاورزی، دانشگاه زنجان، ایران
3 دانشکده کشاورزی و صنایع غذایی، واحد علوم و تحقیقات، دانشگاه آزاد اسلامی، تهران، ایران
چکیده
کلیدواژه‌ها
عنوان مقاله [English]
نویسندگان [English]
Sulfonylurea herbicides' soil persistence can harm subsequent crops in rotation. A factorial experiment (randomized complete block design, three replications) studied sulfosulfuron's soil residual effects on onion growth and yield during the 2019 growing season at the Research Farm of University of Zanjan. Treatments comprised sulfosulfuron doses (0, 25, 50, 75, 100, 125, and 150 g ha⁻¹) and weeding (weeded/unweeded). Measured parameters included weed density and dry weight, crop plant height, density, leaf count, stem fresh/ dry weight, and onion total yield. Results showed weed dry weight decreased sharply at doses >75 g ha⁻¹, with a 43% reduction at 150 g ha⁻¹. Onion leaf count and stem dry weight declined significantly at ≥25 g ha⁻¹ under both weeding regimes, while tuber yield decreased 87% at 150 g ha⁻¹ versus control. Since low doses (25–50 g ha⁻¹) effectively suppress weeds, their application of lower dosages in summer crops like tomato could balance weed control and minimize residual impacts on subsequent onion cultivation.
کلیدواژه‌ها [English]
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