Soyabean is a leguminous vegetable of the pea family that grows in tropical, subtropical, and temperate climates. Soybean was domesticated in the 11th century BC around northeast of China. It is believed that it might have been introduced to Africa in the 19th century by Chinese traders along the east coast of Africa.
In Nigeria, soybean cultivation starts in May/June. Soybeans grow well on almost all types of soil, with the exception of deep sands with poor water retention