This UN report, published in 2013, is long and surfacing now for good reason.
https://unctad.org/en/PublicationsLibrary/ditcted2012d3_en.pdf
The report is summarized here:
UN REPORT SAYS SMALL-SCALE ORGANIC FARMING ONLY WAY TO FEED THE WORLD
http://www.technologywater.com/post/69995394390/un-report-says-small-scale-organic-farming-only