Economy of Japan
The Japanese agricultural sector accounts for about 1.4% of the total country's GDP. Only 12% of Japan's land is suitable for cultivation. Due to 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 overall agricultural self-sufficiency rate of about 50% on fewer than 56,000 km² (14 million acres) cultivated.
Agriculture in the Empire of Japan
The farms were 3.5 to 4 acres (14,000 to 16,000 m²), for rice, potatoes, rice, and rye. Northern Honshū produced 75% of apples of Japan; other products included cherries and horses. Central Honshū cultivated rice and special products including white mulberry (for silkworms) in Suwa, tea, (in Shizuoka), daikon in Aichi, and also rye, rice, grapes for wine, etc.