Seed is one of the key elements in the production and development of agriculture.Through finding the main factor of dominant species of local farmers and guiding the farmers orderly update,it gave full role to the rice varieties in the production and development of agriculture,through which would not only enhance rice production and quality,but also increased farmers income.In this paper,it surveyed 144 households of the rice farmers in three township of the main producing areas of double cropping rice in Hunan Province,summarized the external ...
