Final answer:
True, Okonkwo needed to borrow yam seeds and engage in sharecropping to build his farm, which mirrors historical agricultural challenges and practices.
Step-by-step explanation:
True, Okonkwo had to borrow yam seeds and invest several years in sharecropping to establish his farm and amass his wealth. This situation highlights the difficulties farmers faced, such as the dependency on crop cycles and the risk of falling into a cycle of debt if they were unable to pay back loans for seeds and other necessities.
Agricultural practices in different cultures, like the Niger-Congo peoples' domestication of yams, the purchasing of seeds on credit in the South, and the sharecropping arrangement, are historical examples of the challenges farmers have historically faced. He is known for his strong and independent nature, and he earns his fortune by growing yams and other crops on his own land.