“#Energy and the #Food System”, Jeremy Woods, Adrian Williams, John K. Hughes, Mairi Black, and Richard Murphy, Philos Trans R Soc Lond B Biol Sci. 2010 Sep 27; 365(1554): 2991–3006. doi:10.1098/rstb.2010.0172 #agriculture #fertilizer
on 02022-05-21how much #ammonia does #agriculture need per bushel of #corn? 3kg of hydrogen makes 17k of ammonia which makes 250 bushels of corn (56 lb. each, so 6350 kg; 3.5 kcal/g gives 370 MJ/bushel, so that’s 93 GJ), so the 142MJ in 1 kg of hydrogen has about 3% of the energy content of the resulting 31 GJ of corn. #fertilizer #economics #energy #food
on 02022-05-21