Wargo put forward feasible suggestions for Cao Wei when he was in the field. 1 is to build water conservancy, and the second thing is to engage in military camps. Moreover, Wargo also compiled "On Economic Rivers", expounded his own views, and described in detail how to dig rivers and build water conservancy projects. He believes that building water conservancy is the basis of reclamation. With enough water, the land can be fertile, agriculture can develop better, and reclamation can get twice the result with half the effort. At that time, there was a lot of fighting, and the soldiers and horses did not move food and grass first. Food and grass are very important. On the one hand, they cultivated land in Huainan area, where there were soldiers and food. Even in the worst of the war, they don't have to worry.
However, when fighting Cao Wei, it was defeated by Wargo, and the losses were very heavy. Later, he was framed by eunuchs and lost his military power. At that time, he hated eunuchs so much that he worked for Liu Chan and wanted to get rid of eunuchs. But in the end it backfired. In order to protect himself, he asked to plant wheat in the crib and raise hay for the next war, in fact, in order to avoid seeking self-protection.
Both of them came from farming, but the final outcome was different. First of all, they come from different backgrounds. They all have experience in farming, but Jiang Wei has no experience in farming. Besides, they have different purposes. Wargo went to the wasteland mainly to solve the problem of grain and grass in the border. He intends to promote the development of local agriculture. Jiang Wei is different. His primary purpose was to avoid persecution, and his secondary purpose was to prepare for cutting Wei and hoarding grain and grass. People have never thought of building water conservancy projects.