نتایج جستجو برای: natural and agricultural risks
تعداد نتایج: 16910284 فیلتر نتایج به سال:
چکیده کنه تارتن دو لکه ای tetranychus urticae koch یکی از چندخوارترین آفات شناخته شده محصولات کشاورزی دنیا به حساب می آید. در این بررسی جمعیت تخم و مراحل فعال این کنه در شرایط آلودگی طبیعی و مصنوعی در برگ های 8 رقم لوبیا در سال 1392 در گلخانه و مزرعه تحقیقاتی دانشکده کشاورزی دانشگاه ارومیه موردمطالعه قرار گرفت. آزمایش به صورت طرح کاملاً تصادفی برای شرایط مزرعه در10 تکرار و برای شرایط گلخانه ای...
Introduction: Fire and explosion are the most common consequences of natural gas pipeline accidents. The results of previous studies showed a higher rate of accidents in natural gas transmission lines. Given that a large number of people living in the vicinity of natural gas pipelines with a higher severity of related accidents. The aim of current study was to estimate risks using the method of...
Decision making in agricultural production is a complex process in which many risks such as natural, economic and social ones need to be considered. Climate change is one important example for complex risks causing ambiguities. How can farmers be supported to pro-actively deal with and adapt to climate change? A comprehensive answer to this question can create a good potential for an improved r...
The article is devoted to the study of environmental and natural risks production activities agricultural organizations arising from interaction with environment, as well problem accounting for these risks. authors note that in course their face both risks, is, implementation which can lead a violation balance, are expressed changes weather climate conditions unfavorable agriculture. In order r...
abstract: the present study is an attempt to find out cultural exophoric references in iranian high-school elt textbooks and touch stone series to compare the frequency of occurrence of such references in these books. the purpose is to find out which of the series of the books under investigation impose a greater referential burden on efl learners as far as their reading comprehension of the ...
The aim of this study was to provide a new model for identifying the sources and sources of waste gas in Mahdishahr city gas department and to define corrective measures and prioritize measures to help managers to make appropriate decisions to reduce waste gas. The research method is descriptive-analytical in terms of nature and is applied in terms of purpose. The statistical sample of the rese...
nowadays,tourism industry considered as one of the main sources of income of a country.unfortunately and despite of owning plenty of cultural historical and natural attractions, iran has not reached to a proper position in this field. besides, the historical cities of a country are considered as the income resource and national wealth of it. qazvin with a rich cultural precedent, have suitable ...
Agriculture sector faces risks caused by natural damaging events. So, it is necessary to predict, counteract and mitigate the risks of agricultural activities to increase investment security, to identify risks and to practice risk management methods, in which insurance has a special niche as a risk counteraction and mitigation measure. The objective of this study was to study the role of insura...
agricultural risks affect farmers’ livelihood and income, and exert detrimental influence on the environment leading farmers and rural labor to poverty. hence, farmers should try to manage the risks. the purpose of this descriptive correlational study was to address the determinants of risk management strategies applied by corn growers in kermanshah township. the statistical population of the s...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید