NORTH AMERICA: 41.2; LATIN AMERICA:16.3; TONS OF POTATOES BY HECTARE:; WORLD AVERAGE: 16.8; NORTH KOREA: 27225; SOURCES:
HTTPS://WWW.MUNDOHUERTO.COM/CULTIVOS/PATATA/RENDIMIENTO
HTTPS://WWW.DAILYNK.COM/ENGLISH/INDIVIDUAL-FIELD-RESPONSIBILITY-SYSTEM-CONSIDERED-SUCCESS-YANGGANG-PROVINCE/