Agriculture theory is to stare at the human eye away the traditional agriculture, develop the resources Keziliyong find new resources, to promote the use of biological resources of the loop. Large agricultural theoretical system consists of three color system and agricultural ecosystem detritus, in practicing the various components of the operation should be interdependent, interwoven, mutually resources, mutually conditional, sometimes overlapping, or overlapping complex relationship. Loop economy advocated by the model of economic development to ecological theory and ecological laws based on the integration of economic activities and ecological environment of mankind has played a guiding role.
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