The path analysis the role of agricultural extension on agricultural development (point of View of Agricultural Knowledge and Information System Actors)

This study featured the roles from four major views of agricultural extension, that is farmers, researchers, trainers and extension experts and the population included all farmers and experts of education, extension and research of country in which one province from each region was randomly chosen on the basis of the project of adjacent provinces of agriculture department and country division. In the chosen province, 893255 farmers and 863experts tocks part as explained 385 of farmers and 198 of administrative experts chosen by satisfied sampling filled the validated and reliable questionnaire, I,e., research instrument. The obtained data were analyzed with soft ware SPSS win 15. The present study is on casual communicative research which the dependent variable is on the basis of agreement of these who answered 59 question related to agricultural development, and independent variable included 13 variables (the roles of interest group needs on production cases, increasing farmers participation in activities related to improving a unit, the amount of transferring the resulted effects of presenting technology to related units, the rate of making a communicative net between experts, policy makers and farmers, the rate of marketing improving and giving essential advices for applying agricultural machinery), and also about 75 question related to developing roles of extension were obtained from their agreement through (Kruskal- Wallis). In regression, the variable of extension had 84.3% of variance related to agricultural developing that the participation, making a communicative net between experts, policy makers and farmers, decreasing loss and helping to improve the farmers economic opportunities were the extensions effective activities in agricultural development from view of those who answered. Also the variable of marketing improvement ,transfer of technology and problem-solving and reflecting it to related authorities, transferring resulted effect of presenting technology to related units, helping improving subunit and giving essential advices for applying agricultural development of our country. In explaining the model of on-research, human resource development had the most direct effect and then transferring technology, increasing the public participation and making a communicative net between experts, policy makers and farmers had the most indirect effect on the variable of agricultural development.