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李鎬澈,李鎬洌 慶北大學校 1986 農業科學技術硏究所報 Vol.3 No.-
This study analysis the diffusion of "Ondol" and fertilization on base of Agricultural Book of Yi Dynasty and historical case. Diffusion of Ondol, including three south province, was actively used from eighteen century. This diffusion of Ondol was spontaneously adopted as dewelling space of whole classes, but was conspicuous regional gap because of climate and agricultural technology. From this point, rapid diffusion of Ondol in seventeen-eighteen centuries affect to the development of fertilization. Finally, diffusion "Ondol" roled to turn of agricultural structure and farming classes.