Comparative Advantage Andstrucrure Adjustment In City Laizhou's Crop Production

A rational cropping structure is the key to improve the efficiency of cropping and the income of farmers in rural areas.To establish a rational cropping structure, it requires considering the various aspects as natural resources, the characteristics of social economy, technology developing level of social economy and market demand and supply. Based on the theory of comparative advantage and competitive advantage and introduced the method of Aggregated adventage Indices, this paper is to empirically analyze the comparative advantage tendency of main crops in City Laizhou and competent advantage in each town in City Laizhou The research will find the evidence of policy adjusting plantation structure and optimizing of regions structure in City Laizhou.The development of plantation is restricted by resources. The paper outlines the plantation resources in City Laizhou, showing that all the natural resources is good except weak water resource and the application of agricultural technology of social resource is urgent to be strengthened. Then it analyses the tendency of plantation structure and region optimization from year 2000 to 2005 in City Laizhou.In the demonstration section of the paper aiming at the main plantation crops and variety in City Laizhou and each town in City Laizhou, Some research has been done including determining and analyzing scale advantage, efficiency adventage and aggregated advantage of the main grain crops (including wheat corn soy bean peanut vegetables apple pear grape peach)...