chapter 9 agriculture sector strategies nancy nelson appalachian state university overview agricultural practices accounted for only 7 or 53 megatons of north carolina s total ghg emissions in 1990 figure 1 while this is a small percentage the significant contributor methane ch4 and nitrous oxide 47 39 respectively overall land use changes including conversion from to farmland also account 2 such can be reduced through improved management outlines number that target improvements if implemented recovery measures could help achieve reductions at least 199 000 tons ec02 when further combined with more fuel efficient farming techniques better fertilizer eco2 reduction potential somewhat larger but still relatively comparison other sectors economic 1997 ranked 15th nationally farms nation it 4th generation farm income gleaning 3 5 billion country