Agriculture, forestry, and fishing in Japan
Agriculture, farming, and fishing form the primary sector of industry of the Japanese economy together with the Japanese mining industry, but together they account for only 1.3% of gross national product. Only 20% of Japan's land is suitable for cultivation, and the agricultural economy is highly subsidized.
Agriculture in Nigeria
The usage of inorganic fertilizers was promoted by Nigerian government in the 1970s.
In 1990, 82 million hectares out of Nigeria's total land area of about 91 million hectares were found to be arable. 42 percent of the cultivable area was farmed. Much of this land was farmed under the bush fallow system, whereby land is left idle for a period of time to allow natural regeneration of soil fertility. 18 million hectares were classified as permanent pasture, but had the potential to support crops. Most of the 20 million hectares covered by forests and woodlands are believed to have agricultural potential.