نتایج جستجو برای: esfarayen
تعداد نتایج: 51 فیلتر نتایج به سال:
abstract beet soilborne virus (bsbv) is a member species of the genus pomovirus with rigid rod particles and 3 positive single stranded rnas. the virus is transmitted by polymyxa betae and restricted to chenopodiaceae. a survey was conducted in 2005 for identification of bsbv in northern khorasan province. samples showing yellowing, elongated and upright petioles with narrow leaf lamina and hai...
Abstract Background and purpose: Because of climate change, a Large part of the country's lands and waters are becoming saline, so it is very important to know the ecological aspects of halophyte species in the exploitation of water resources and saline lands. Salicornia spp. are annual coastal herbaceous plants and grow in colonies in salt marshes and seashores, especially in the mouths of ri...
Quchan- Esfarayen magmatic belt (north of Sabzevar) include Neogene adakitic domes with andesite to rhyolite in composition which is cut by Jurasic sedimentary rocks, Eocene volcano-sedimentary rocks, Miocene sedimentary rocks and even occasionally Peliocene conglomerate. The main minerals of these rocks are plagioclase and amphibole with various textures such as felsitic porphyry, microlitic p...
The ruins of impressive structure made by adobe known as the city of “Belgheis” is located 3 km from Esfarayen in the province of North Khorasan of Iran. The role of soil quality in the occurrence of damages to clay and adobe structures of Belqis area is the purpose of this research. Choosing the right soil is the first step in the preparation of adobe, Therefore, it is necessary to study the r...
the purpose of this study, determining the optimal cultivation pattern by using interval mathematical programming approach among the farmers of esfarayen county before and after targeting the subsidies. for this purpose, farmers based on water resources classified in three group of using the river water, deep wells water and rainfed cultivation. the required data for this study has been obtaine...
The present study aimed at identifying and ranking the perceived effects of Chokheh wrestling sport event from the viewpoints of spectators. The research method was mixed and qualitative research method was used to identify the effects of holding Chokheh wrestling and quantitative research method was used to assess the importance and ranking of factors and components. The statistical populatio...
Institutionalization of Water Users’ Cooperatives (WUAS) is one of the strategies for cooperative irrigation management, which lays the foundation for the participation of farmers in tackling water shortage challenge to reach the objectives of sustainable management of agricultural water in an efficient manner. The main purpose of the present study was to identify the grounds for improving WUAs...
Introduction: Due to the widespread prevalence of the disease of Covid 19 and the fact that the behavior and lifestyle of people has an important role in the transmission of this disease, this study was conducted to investigate the prevalence of high-risk behaviors in patients with this disease. Methods: This descriptive-analytical study was conducted on 706 patients whose PCR test results wer...
this study is intended to investigate the level of public-private cooperation in the process of agricultural development from the view point of potential investors and producers. to achieve this objective we used an adjusted jensen model as a conceptual framework for cooperation. in this process mutual responsibilities is provided to reveal different dimensions of strategic cooperation between ...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید