More than 50,000 Africans got training and 23 agricultural demonstration centers built on the continent For Solomon Yokamo and his fellow students, the solution to feeding Africa's growing population could be found in a plot of farmland about 400 kilometers southwest of Beijing. The Ethiopian, who is majoring in resources utilization and plant protection as a postgraduate student at China Agricultural University, said he arrived in the country hoping to understand how China managed to attain food security and feed about one fifth of the world's population with only 9 percent of the world's arable land. He was one of