Document Type : Original Article
                            
                        
                                                    Authors
                            
                                                            
                                                                            1
                                                                        Rural Development Research Institute, ARC                                
                                                            
                                                                            2
                                                                        Fauclty of Agriculture, Tanta Univerisity, kafr EI· Sheikh                                
                            
                                                                            
                        
                        
                            Abstract
                            This study aims to determine the factors that affect on diffusion of 
 some agricultural bio fertilizers among fanners, and, to detect most 
 important problems (obstacles) that face them and hinder this phenomenon.
 To achieve these objectives a sample of farmers was drawn from the 
 Ariamoon 95 farmers, EL-Warak 85 fanners, EL-Salahib 75 farmers and 
 Om- sin 105 farmers. Data were collected by personal interviews using a 
 'protested questionnaire. Percentages, Diffusion rate, correlation, regression •.
 and step-wise multiple regression techniques were used in data analysis. 
 The findings can be summarized as follow:
 - Diffusion rate of Agricultural bio-fertilizers reached about 37% of the 
 sample's members. It reached about 32% among farmers who lived in 
 new villages, and about 41 % in old villages, rural characters, behaviors, 
 values, and social systems may cause this difference.
 ~ All variables which were tested are significantly correlated with diffusion of 
 agricultural bio fertilizers scores except experience with farming and 
 electric equipments ownership.
 - When multiple regression analysis was applied, there were three variables; 
 agricultural land ownership. degree of leadership and degree of social 
 participation were found to be significantly affecting diffusion of 
 agricultural bio fertilizers scores.
 - Step-wise multiple regression analysis indicated that the coefficient of 
 .. determinantion was 17%, 2.1% and 18.4% to plogrine, phosphorine and 
 Okadine.
 - The step-wise multiple regression analysis yielded reduced equations 
 containing the detenninants of diffusion of agricultural bio fertilizers: In 
 summery, degree of leadership. relative advantage, land ownership, 
 degree of social participation and degree of agriCUltural extension contact 
 were found to be the determinants of diffusion of agricultural bio fertilizers.
 - It was found that the problems limiting diffusion of bio-fertilizers are 
 unknown bio fertillzers prices, lack of specialized meetings, lack of 
 relevent television messages. how perceived a (visibility of results, lack 
 of relevent radio programs, missed information about where to get them, 
 and unavailability at cooperatives and extension centers, in that order.
 
 Finally, the research findings have definite implications on both levels. 
 partically and theoretically.