13.3 million farmers cultivate GM crops.
Marshall
Andrew
A
D000383:Agriculture / Q000379:methods* / Q000706:statistics & numerical data*; D018556:Crops, Agricultural / Q000235:genetics / Q000254:growth & development; D003625:Data Collection / Q000706:statistics & numerical data; D006801:Humans; D038622:Internationality; D030821:Plants, Genetically Modified / Q000235:genetics / Q000254:growth & development