The grey relevancy theory is an important part of grey theory. The grey relevancy theory is a means to describe and compare the developing tendency of a system by quantitative analysis, and it is the base of the grey clustering analysis and grey decision. Since China has opened up, the farmers＇ income has increased and its patterns has changed significantly. However, the slow-down of agricultural development and the slow increase of farmers＇ income has become a bottleneck of the national development. This paper based on the grey relevancy the...
