Tōhoku region
Tōhoku was traditionally considered the granary of Japan because it supplied Sendai and the Tokyo-Yokohama market with rice and other farming commodities. Tōhoku provided 20 percent of the nation's rice crop. The climate, however, is harsher than in other parts of Honshū due to the stronger effect of the Siberian High, and permits only one crop a year on paddy fields.
Agriculture, forestry, and fishing in Japan
The most striking feature of Japanese agriculture is the shortage of farmland. The under cultivation constituted just 13.2% of the total land area in 1988. However, the land is intensively cultivated. Rice paddies occupy most of the countryside, whether on the alluvial plains, the terraced slopes, or wetlands and coastal bays. Non-paddy farmland share the terraces and lower slopes and are planted with wheat and barley in the autumn and with sweet potatoes, vegetables, and dry rice in the summer. Intercropping is common: such crops are alternated with beans and peas.