نتایج جستجو برای: chemical weed control

تعداد نتایج: 1673929  

Journal: :چغندرقند 0
آژنگ جاهدی عضو هئیت علمی مرکز تحقیقات کشاورزی و منابع طبیعی استان همدان

in order to reduce herbicide utilization, a 3-year field experiment was carried out with integration of mechanical and chemical weed control methods; in mechanical method, three types of blades (curred- bed knife, square- turn knife and sweep) were used. chemical control was done with chloridazon (wp 80%) and desmedipham (ec 15.7%) in two spraying sheme: once band sparying with 2 l h-1 & twice ...

2013
Neelam Sharma Swati Sharma Suresh Kumar Robin Joshi

Wheat, a member of family Poaceae is one of the major food crops in the world. Globally, it occupies about 17% of the cropped land and contributes 35% of the staple food (Pingali 1999).Wheat constitutes one of the most abundant sources of energy and protein for the world population and its increased production is essential for food security (Chhokar et al. 2006). Severe competition from weeds i...

Journal: :Sustainability 2022

Mechanical-chemical synergy has been proven efficient in weed control. However, characterizing the state of weed–soil complex after mechanical weeding and revealing its effects on subsequent herbicide application is still challenging, which restricts implementation this technology. This paper first presents a method to characterize from perspectives fragmentation composite characteristics. The ...

Journal: :علوم گیاهان زراعی ایران 0
صادق اسدی دانشگاه صنعتی شاهرود محمد رضا چایی چی پردیس کشاورزی و منابع طبیعی دانشگاه تهران حمید عباسدخت انشگاه صنعتی شاهرود حمید رضا اصغری انشگاه صنعتی شاهرود منوچهر قلی پور دانشگاه شاهرود

determining the best mixture of sorghum and fenugreek intercropping defines the best forage quality in medicinal forage production. this project was conducted to evaluate the effect of biological, chemical and integrated fertilizing systems on forage quantity and quality in sorghum and fenugreek intercropping. the experimental treatments were arranged as split plots based on randomized block de...

2003
Timothy A. Park Luanne Lohr

Organic farmers make system-level crop protection decisions that combine complementary insect, disease, nematode, and weed management strategies. Data from a national survey of U.S. organic farmers were used in a multivariate count data model to identify the farm and regional factors influencing adoption across the linked pest management categories. The results showed that weed management requi...

Journal: :علوم گیاهان زراعی ایران 0
محمد انجیل الی دانشجوی کارشناسی ارشد دانشکدۀ کشاورزی دانشگاه زنجان علیرضا یوسفی استادیار، دانشکدۀ کشاورزی دانشگاه زنجان مجید پور یوسف استادیار، دانشکدۀ کشاورزی دانشگاه زنجان رضا فتوت استادیار، دانشکدۀ کشاورزی دانشگاه زنجان

in the absence of herbicides, cover crops play an important role for weed management in organic than in conventional farming. therefore, in order to evaluate the effects of cover crop management and plant density of buckwheat (fagopyrum esculentum) as cover crop on weed suppression, a field experiment was conducted at the research farm of university of zanjan, during the growing season of 2011....

Journal: :بوم شناسی کشاورزی 0
سارا صفی خانی محمدرضا چائی چی احمدعلی پوربابائی

in order to study the effect of different n fertilizer on berseem forage in an intercropping with basil, this experiment was conducted in research farm of college of agriculture, university of tehran during growing season 2011. experimental treatments were arranged as split plots based on a randomized complete block design with three replications. different fertilizers consisted of control (no ...

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