Assessment of Energy Requirements for Different Methods of Two-Year Fallow Keeping and Cultivation of Winter Wheat

During exclusion of the land from market production for two vegetation seasons the highest energy outlays were incurred for maintaining the black fallow and the lowest for the herbicide fallow. In winter wheat production technique the highest energy outlays (15 800 MJ ha -1 ) were incurred in materials. In the group of outlays for materials, 66.4% were fertilizers, 31.4% the sowing material and just 2.2% the plants protection media. The second largest flow of energy outlays consisted