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Cassava production in Nigeria
Cassava (''Manihot esculenta'') production is vital to the economy of Nigeria as the country is the world's largest producer of the commodity. The crop is produced in 24 of the country's 36 states. In 1999, Nigeria produced 33 million tonnes, while a decade later, it produced approximately 45 million tonnes, which is almost 19% of production in the world. The average yield per hectare is 10.6 tonnes.
In Nigeria, cassava production is well-developed as an organized agricultural crop. It has well-established multiplication and processing techniques for food products and cattle feed. There are more than 40 cassava varieties in use. Cassava is processed in many processing centres and fabricating enterprises set up in the country.
==History==
Originally a crop of South America, it was introduced in to Nigeria's southern part during the period of slave trade proliferated by Portuguese explorers and colonizers in the sixteenth century.〔 However, its importance to the country got a boost in the late nineteenth century when more slaves returned to their homeland and introduced processing techniques. Over the years, it has become a major economic sustenance crop and it has attained the status of largest producer in the world with recorded production of 34 million tonnes and is a cash crop of great importance to the people of Nigeria.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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