02810nam a2200421 a 450000100080000000500110000800800410001910000200006024501390008026000510021930000100027050000180028052016850029865000140198365000220199765000230201965000130204265000150205565000240207065000270209465000120212165000150213365000250214865000260217365000090219965000150220865300130222365300120223665300190224865300080226765300230227565300260229865300210232465300120234565300120235765300110236965300080238014590882006-06-01       1981    bl uuuu  m   00u1 u    #d1 aGALERANI, P. R.  aDiffusion of research results to extension personnelban example based on soybean production systems and soybean diseases in Illinois.  aUrbana-Champaign: University of Illinoisc1981  a170p.  aM.Sc. Thesis.  aThe acceptance of research results by extension workers has not been thoroughly studied. There is evidence that if extension agents do not participate in the identification farmers constraints, which generates new research projects, they will not understand the applicability of research results and thus not accept it. This negatively affects the diffusion-adoption process to the farmers. Research in soybean production systems was used to improve the participation and interrelationship between extension agents and researchers. Factors adversely affecting soybean systems at the farmer's level were identified and models of improved soybean systems designed and tested. The combination of the factors including tillage systems, row spacing, cultivar use and their economic performance were studied. The top five soybean production systems were identified by evaluating their technical and economical performance. In 1980, the systems (treaments) Corsoy 79 in disk tillage at 25-cm spacing; Corsoy 79 in conventional tillage at 25-cm; Corsoy 79 in sweep plow tillage at 25-cm; and Corsoy 79 in disk tillage at 76-cm were the top five systems considering yield as the production factor. The combination of these three factors influenced the natural occurrence of diseases. Brown spot was found to be the disease most influencing yield. Bacterial blight alone had little influence on yield but when in combination with brown spot they were the second most important disease. Pod and stem blight was the stem disease with greatest affect on yield. Yield was influenced first by tillage system, second by spacing and least by cultivar. Cultivar, however was found to be the most...  adiffusion  aeconomic analysis  aextension programs  aIllinois  atechnology  aAnálise Econômica  aDifusão de Tecnologia  aDoença  aProdução  aPrograma de Pesquisa  aSistema de Produção  aSoja  aTecnologia  aDifusão  aDisease  aEstados Unidos  aEUA  aProduction systems  aProgramas de extensao  aResearch program  aSistema  aSoybean  aSystem  aUSA