This structural shift was the inevitable result of East Africa developing in accordance with its own national conditions. In the past, East Africa had planted large quantities of wheat, which had in fact been influenced by the origins of its immigrants.
East Africa's early immigrant population came from Europe or the northern Far East Empire, chiefly the Yellow River-Huai River Plain. The staple-food traditions of these two regions greatly influenced the development of East Africa's early agriculture.
However, although East Africa was a tropical country and possessed conditions suitable for growing wheat, much like India, it was ultimately better suited for rice cultivation. Rice cultivation, however, depended heavily on water sources.
East Africa's early territory had mainly consisted of what had been Tanzania and Kenya in his previous life. Since many areas were relatively arid or had poor water conservancy facilities, planting drought-resistant crops such as wheat and millet had naturally been more reasonable.
Now that East Africa's Water Conservancy Construction had become relatively complete, and as regions with abundant water resources such as Zambia, Angola, Mozambique, and the Great Lakes Region had been incorporated into East African territory, the expansion of rice cultivation was naturally only to be expected.
Likewise, the cultivated area of high-yield crops such as corn and potatoes had steadily expanded in East Africa. East Africa's overall latitude and climate were actually similar to South America's, so these two major South American staple crops were also widely grown in East Africa.
Although Siberian potatoes were rather famous, the true homeland of potatoes was still South America. Peru and Chile were both renowned kingdoms of potatoes, with over a thousand varieties of potatoes alone. East Africa had naturally introduced some potato varieties as well. It had to be said that Native Americans had made important contributions to