نوع مقاله : مقاله پژوهشی
نویسندگان
گروه مهندسی تولید و ژنتیک گیاهی، پردیس کشاورزی و منابع طبیعی، دانشگاه رازی، کرمانشاه، ایران
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
In sustainable agriculture, one of the effective strategies to improve potato yield as the fourth most valuable plant in human nutrition is the use of cover crops in crop rotation. This research was conducted to investigate the effect of three cover crop species (clover, vetch and barley) planted as pure and mixed as green manure on growth and yield of potato in the Agricultural Research Farm of Razi University, Kermanshah in the form of a randomized complete block design with three replications. The results showed that in all stages of measurement including vegetative growth (before flowering), tuber formation, tuber filling and maturity potato showed higher plant height, leaf area, leaf dry weight, stem dry weight, the number of main stems and leaf relative water content under green manure treatments compared to control (without cover crops). Moreover, the use of cover crops led to the highest number of potato tubers produced. Cover crops had also a positive effect on the diameter grading of the tubers at the maturity stage, as the highest large tubers (211 per m-2) were observed in the treatment of 40% clover + 40% vetch + 20% barley. Also, under this treatment, potato tuber yield increased by 8 ton ha-1 compared to the control treatment. In general, the results revealed that the use of cover crops as green manures can be a suitable method to improve growth characteristics and yield of potato especially when a mixture of legume and non-legume species are used.
کلیدواژهها [English]
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