نویسندگان
1 دانشگاه لرستان
2 1- دانش آموخته کارشناسی ارشد علوم علف های هرز، دانشکده کشاورزی، دانشگاه لرستان، خرم آباد، ایران
3 استادیار بخش تحقیقات گیاه‌پزشکی، مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی استان لرستان، سازمان تحقیقات، آموزش و ترویج کشاورزی،
چکیده
کلیدواژه‌ها
عنوان مقاله [English]
نویسندگان [English]
This research aimed to assess the impact of conservation tillage systems on crop yield and weed management in a rain-fed chickpea field. The experiment was carried out as a split-plot based on a completely randomized block design with four replications in Lorestan Province during 2014-2015. The main factor included four levels (no-tillage (NT) without glyphosate, NT with glyphosate, reduced tillage (RT), and conventional tillage (CT)), while the sub-factor comprised five levels: pre-emergent herbicides pyroxasulfone, flumioxazin, metribuzin, hand-weeding treatment, and unweeded control. Results showed that applying glyphosate under NT conditions led to the greatest reduction in weed density and biomass by 53.6% and 72.4%, respectively, during mid-season growth. The highest average yield of chickpeas was recorded in the RT treatment, CT, and NT with glyphosate, at 206.8, 192.4, and 180.3 kg. ha-1, respectively. Among the herbicide-based treatments, the greatest increases in grain yield were observed in the two-stage hand-weeding under reduced tillage (382.7 kg ha⁻¹) and the pyroxasulfone herbicide treatment (189.3 kg ha⁻¹), representing 212% and 54.8% increases over the control, respectively. Pyroxasulfone, flumioxazin, and metribuzin were the most effective herbicides for weed control, demonstrating 49%, 41.7%, and 8.6% effectiveness, respectively, compared to the control. These results indicate that RT could serve as a viable alternative to CT in rain-fed chickpea fields.
کلیدواژه‌ها [English]
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