TY JOUR TI Economic aspects of the assessment of the earth from the position of the organization of the rent relations KW economic fertility KW economic assessment KW rent relations KW intensive development of agriculture KW ownership of land KW productive forces of society JO Actual directions of scientific researches of the XXI century: theory and practice AU Davydova, E.. PY 2014 IS 2 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov