For promoting the land scale management smoothly and speeding up the realization of agricultural modernization, combined with the principle of comparative advantage, using the scale comparative advantage index, yield comparative advantage index and comprehensive comparative advantage index, we analyzed the advantages of various crop production status based on the analysis and evaluation of the investigation on 8 cities' land scale operation status. According to all kinds of crops advantage index of 8 cities, combined with the development principles of land scale management, the agricultural land was divided into 3 core areas of grain production, economic crops production and vegetables production, and the land scale management level could be improved through adjusting agricultural industry structure, training agricultural industrialization organization and strengthening the support from the government. |