quality:correction, structural:summarization, structural:expansion
Agriculture and fishery

The Japanese agricultural sector accounts for about 1.2% of the country's total GDP as of 2018. Only 11.5% of Japan's land is suitable for cultivation. Because of this lack of arable land, a system of terraces is used to farm in small areas. This results in one of the world's highest levels of crop yields per unit area, with an agricultural self-sufficiency rate of about 50% as of 2018. Japan's small agricultural sector is highly subsidized and protected. There has been a growing concern about farming as farmers are aging with a difficult time finding successors.

Japan ranked seventh in the world in tonnage of fish caught and captured 3,167,610 metric tons of fish in 2016, down from an annual average of 4,000,000 tons over the previous decade. Japan maintains one of the world's largest fishing fleets and accounts for nearly 15% of the global catch, prompting critiques that Japan's fishing is leading to depletion in fish stocks such as tuna. Japan has sparked controversy by supporting commercial whaling.