نتایج جستجو برای: economic factors affecting the technical efficiency of sugar beet producers

تعداد نتایج: 22903342  

Investigating the efficiency of different economic sectors, especially the industrial sector, as well as the factors affecting the efficiency of this sector is one of the most important economic issues. Various methods are used to measure the technical efficiency, and the stochastic frontier production function analysis is one of them. In this method, by using econometric techniques, the effici...

Journal: :چغندرقند 0
مرتضی تهامی پور دانشجوی دکتری اقتصاد کشاورزی، دانشکده اقتصاد و توسعه کشاورزی، دانشگاه تهران ایرج صالح دانشیار اقتصاد کشاورزی ، دانشکده اقتصاد و توسعه کشاورزی، دانشگاه تهران مهدی نعمتی دانشجوی کارشناسی ارشد اقتصاد کشاورزی، دانشکده اقتصاد و توسعه کشاورزی، دانشگاه تهران

the purpose of this study is measuring total factor productivity (tfp) growth of sugar beet for different provinces of iran and then decomposing it to the changes in technical change, managerial efficiency change and scale efficiency change. for this purpose we used the data envelopment analysis (dea) method and malmquist productivity index. results showed that average growth of total factor pr...

Journal: :چغندرقند 0
محسن رفعتی مربی پژوهشی- موسسه پژوهشهای برنامه ریزی، اقتصادکشاورزی و توسعه روستایی بهاالدین نجفی استاد دانشگاه شیراز ادوارد غازاریان استاد دانشکده اقتصاد دانشگاه کشاورزی ارمنستان

the main objective of this study was to investigate the economic efficiency of investment in sugar beet breeding research in iran. the required information including the value and cost of sugar beet production in 2010 and the budget allocated to the sugar beet breeding research were obtained from the office of statistics and information technology of ministry of jihad-e-agriculture and agricult...

Journal: :چغندرقند 0
جواد گوهری هیئت علمی مؤسسه تحقیقات چغندرقند منصور مصباح هیئت علمی مؤسسه تحقیقات چغندرقند سعید صادق زاده حمایتی هیئت علمی مؤسسه تحقیقات چغندرقند فرحناز حمدی مدیر داخلی مجله چغندرقند

monogerm and multigerm seed varieties are used in sugar beet cultivation. singling is inevitable and mechanization almost impossible when multigerm seed varieties are used. for this and for some other reasons, economically sound and fully mechanized cultivation of sugar beet calls for the use of monogerm seed varieties. throughout europe, only monogerm varieties are used in sugar beet productio...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده ادبیات و علوم انسانی دکتر علی شریعتی 1391

this ethnographic case study research was carried out in a private school setting in the context of iran. the research tried to explore the analysis and identity construction of a group of learners and teachers along with the content analysis of books on the basis of four types of commodified, political, national and narrative identities. how english language learners and teachers in an informa...

پایان نامه :دانشگاه تربیت معلم - تهران - دانشکده ادبیات و علوم انسانی 1391

abstract global financial crisis has created too many problems in relations among governments. among these problems, the issue of global monetary management, more than every time in the past four decades, has been moved in the center of international economic attentions. a problem which is specially known with the monetary hostility between united states and public republic of china. where ar...

پایان نامه :0 1392

nowadays in trade and economic issues, prediction is proposed as the most important branch of science. existence of effective variables, caused various sectors of the economic and business executives to prefer having mechanisms which can be used in their decisions. in recent years, several advances have led to various challenges in the science of forecasting. economical managers in various fi...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز - دانشکده کشاورزی 1389

abstract: since sugar consumption is directly related to diabetes and other illnesses such as obesity, the issue that will most heavily dominate the health food market is blood sugar management and low glycemic foods. using calcium chloride and gums such as sodium alginate and low ester pectin as thikener and a high-potency sweetener aspartame we were able to reduce sugar content of sour cherry...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده مهندسی صنایع 1387

according to webster and wind (1972) and anderson et al (1987), “organizational buying is a complex process and involves many people from different functional areas, multiple goals and potentially conflicting decision criteria. moreover, the customers of today are also more knowledgeable and selective when making their purchasing decisions. since a key to organizational survival is the retentio...

پایان نامه :0 1370

all analytical methods are generally based on the measurement of a parameter or parameters which are somehow related to the concentration of the species.an ideal analytical method is one in which the concentration of a species can be measured to a high degree precision and accuracy and with a high sensitivity. unfortunately finding such a method is very difficult or sometimes even impossible.in...

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