نتایج جستجو برای: agricultural knowledge systems
تعداد نتایج: 1745355 فیلتر نتایج به سال:
In recent decades agriculture has undergone rapid technological and structural changes. This development has raised concerns about the sustainability of modern agriculture and motivated an interest in alternative and, perhaps, more sustainable agricultural systems. Agriculture involves both ecological and social systems, and research in agricultural systems therefore faces the dual challenge of...
the successful adoption of e-learning systems is mainly dependent on the learners’ attitude and willingness to use them. this survey was conducted to investigate agricultural extension workers’ attitudes toward using e-learning for on-the-job training in iran and factors which affect it. using the stratified sampling technique a sample of 379 extension workers were selected from six provinces. ...
The main purpose of this study was to explore the factors affecting optimal management of agricultural water in Hamadan's area. The statistical population of the study included all Hamadan's farmers. A number of 148 farmers were selected randomly through a proportional sampling method in two phases. Both questionnaire and interview techniques were used in order to collect data. The empirical an...
Substantial improvements of agricultural systems are necessary to meet the future requirements of humanity. However, current agricultural knowledge and information systems are generally not well suited to meet the necessary improvements in productivity and sustainability. For more effective application of research output, research producers and research consumers should not be considered as sep...
Traditional knowledge has played, and still plays, a vital role in the daily lives of the vast majority of people. Traditional knowledge is essential to the food security and health of millions of people in the developing world. ... In addition, ... the use and continuous development by local farmers of plant varieties and the sharing and diffusion of these varieties and the knowledge associate...
internationally, employability has recently become an increasingly controversial issue in higher education. the emergence of knowledge-based economies, accompanied by the by-products of globalization, has forced agricultural higher education systems all around the world to think twice about the quantity and quality of their courses. on one hand, there has been a surplus of highly educated gradu...
background: the research to date does not present an articulated approach to ensure nutrition and food systems education is systematically implemented within schools. this paper aimed to investigate food experts’ views of the best strategies to improve school‑leavers’ knowledge of nutrition and food systems. methods: in this qualitative study, 28 iranian food and nutrition experts from four maj...
the aim of this paper was to study knowledge intensive entrepreneurship role in innovative performance in agricultural technology management by entrepreneurial r&d; definition implementing as a casual-effect research by using casual model. statistical population of the study was consisted of 2768 agricultural research specialists in iran, one out of each six regional groups of provinces (n= 25)...
Knowledge systems-networks of linked actors, organizations, and objects that perform a number of knowledge-related functions that link knowledge and know how with action-have played a key role in fostering agricultural development over the last 50 years. We examine the evolution of the knowledge system of the Yaqui Valley, Mexico, a region often described as the home of the green revolution for...
Among the biodiversity of soil microorganisms, bacteria have the basic role in soil functions. In order to determine the diversity and abundance of soil bacteria in arid regions, and also to study the effect of agricultural practices on them, a study was conducted in winter wheat fields on Shirvan, Mashhad and Gonabad. In each region, high and low input fields of winter wheat and a natural syst...
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