(UTC) 
 :::Here are the reliable sources you requested: 

 :::*  Scientific American article 
 :::*   Welsh, Rick (1999). "Economics of Organic Grain and Soybean Production in the Midwestern United States". Henry A. Wallace Institute for Alternative Agriculture. 
 :::* Seufert, Verena; Ramankutty, Navin; Foley, Jonathan A. (2012). "Comparing the yields of organic and conventional agriculture". Nature 485 (7397): 229–232. doi: 10.1038/nature11069. 
 :::* Badgley, Catherine; Moghtader, Jeremy; Quintero, Eileen; Zakem, Emily; Chappell, M. Jahi; Avilés-Vázquez, Katia; Samulon, Andrea; Perfecto, Ivette (2007). "Organic agriculture and the global food supply". Renewable Agriculture and Food Systems 22 (2): 86. doi:10.1017/S1742170507001640. Lay summary – New Scientist (July 12, 2007). 
 :::Can we now make the adjustments to the material to remove the misleading statement the original user requested?   17:20, 3 March 2015