INFO:
BACKGROUND OF THE NIGERIAN CASHEW INDUSTRY  Cashew was introduced into Nigeria in 16th century by the Portuguese. It was initially used as a means of checking erosion especially in the Eastern part of the country. It has now become a tree crop with an estimated annual production of 160,000 metric tons valued at US$250million (Two Hundred and fifty Million US Dollars) from the exportation of raw cashew nuts alone.
BACKGROUND OF THE NIGERIAN CASHEW INDUSTRY -  ppt video online download