This article deals with the research of the energy values of winter wheat agroecosystems in terms of production, crop year 2012, the emphasis being placed on analysis of the technological sheet used. Study of energy indices invested in winter wheat agro ecosystems provides information on improving the energy efficiency of each single point and denotes criteria of technologies implementation that will ensure the consumption reduction in energetic agro ecosystems and enhance production profitability, while protecting biotic and a biotic elements. Research has shown that there is a significant difference between the harvest values and conversion coefficient of energy invested in winter wheat Flore (weeds), the average yield obtained in the field and the one declared by the entrepreneur. Detailing and using the energy balance for each link by setting the share of energy spent indicate possible ways of improving the efficiency of processes, which induce further production and distribution in the agro-food sector. The current system of practiced agriculture is an extensive one that due to lack of reasonable investment and ratings at the energetic level exhausts parts of agroecosystem, including the potential fertility of the soil.