On Connotation of Agricultural Science and Technology Innovation and Its Effectiveness in Agricultural Modernization

The Science and technology innovation of agricultural is one of the magic weapon in promote agricultural modernization in developed countries.Special nature of the science and technology innovation of agricultural is affected not only by geographical environment,but also has a higher risk,not only the characteristics of both public,but also the constraints of the operation of agriculture organization.The science and technology innovation of agricultural is great importance in the effectiveness in agricultural modernization,it is the mechanism mainly through optimization the elements of agricultural productivity,playing a significant degree of effectiveness in allocation of agricultural resources,reduce agricultural risks,changes in the agricultural structure and increase agricultural society.