The crisis of modern management paradigm of development in agrarian economy sector shows itself in the inability of society to traditionally solve new tasks faced by economic system, which is bounded by biosphere scales. It is in the first place about the establishment and compliance with certain parameters of agricultural enterprises’ economic activity, in particular removal of resources used for production of goods and their reproduction; distribution of social branch product and distribution of property, etc. Results of the research presented in the article confirm the existence of the crisis of anthropocentric paradigm of social development, which requires revision of the methodology of complex systems management. Unfortunately, the emergence of new concepts for managing the development of agricultural sector of the economy ("sustainable development", "balanced development") showed the weakness of their theoretical and methodological basis, which conditioned the continuation of scientific research in the direction of forming a more adequate management paradigm. The research, the subject matter of which is the management of certain sectors of the economy harmonious development, in particular, agrarian ones, are prospective within this context. Even initial scientific investigations in this direction indicate the existence of a complex of problems of the agrarian sphere development, associated with the harmonious proportions violation of system structures. The hypothesis, that bringing the parameters of structural elements to harmonious proportions can give impetus to the development of the agrarian economics system, is formulated. The research confirms the crisis of anthropocentric paradigm of social development that requires the review of the methodology of complicated systems’ management. New management concepts of agrarian sector development («sustainable development», «stable development», «balanced development»), unfortunately, show the weakness of their theoretical and methodological background that causes the ongoing scientific research concerning the most adequate management paradigm. The author proves that the new proportions under structural and functional changes either correspond to the law of golden-section search that means harmonious (progressive) development, or deviate from this organization rate considerably, causing regression. 

development, agricultural sector of the economy, harmonious development management, harmonious proportions, management system