64 “From an agricultural point of view, the yam is a very extravagant vegetable to grow. Each tuber requires a full square yard of land, which, in itself, is a big demand. For seven or eight months, regular attention must be given to its care, absorbing much time and labour. If wages had to be paid, it is doubtful whether a yam farm would pay its way, let alone yield profit.”
Thomas Basden, George, Niger Ibos: A Description of the Primitive Life, Customs and Animistic Beliefs of the Ibo People of Nigeria by One Who, for Thirty-five Years, Enjoyed the Privilege of their Intimate Confidence and Friendship (New York: Barnes & Noble, 1966), 389–390
Google Scholar. See also: “Yam, the king of crops, was a very exacting king. For three or four moons it demanded hard work and constant attention from cockcrow till the chickens went back to roost. The young tendrils were protected from earth-heat with rings of sisal leaves. As the rains became heavier the women planted maize, melons and beans between the yam mounds. The yams were then staked, first with little sticks and later with tall and big tree branches. The women weeded the farm three times at definite periods in the life of the yams, neither early nor late.” Achebe, Things Fall Apart, 27.