extensivisation
extensivization
(ɪkˈstɛnsɪvaɪˈzeɪʃən) orn
(Agriculture) the process of (something) becoming more extensive, esp in agriculture
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014