[VOA] Abuja -- Nigerian President Muhammadu Buhari is unveiling a massive pyramid of rice harvested by farmers to pay back bank loans they borrowed to expand their production. Nigerian officials say the low-interest loans helped more than double the average yield of rice and maize, ending the country's dependence on rice imports. The Central Bank of Nigeria plans to sell the rice at below market rates to reduce the high prices that consumers have been paying for the staples.