FIELD: agriculture. SUBSTANCE: method involves mowing licorice ground sprouts and stems of wild plants growing in licorice association; cutting off soil surface layer to depth at the level of licorice root neck and black head parts; providing root passages, with land relief being taken into account, and simultaneously providing partial undercutting of vertical and horizontal roots in slots; providing root passages in weakly developed soil with diffusely distributed licorice roots by digging out ditch of rectangular section having width of 0.4 m and depth of up to 1.2 m, natural soil layers being lifted to the level of day surface layer without mixing these layers; placing upper soil layer onto ditch bottom together with plant and root remains and weedage seeds; shifting upper fertile soil layer from ditch sides and spilling preliminarily lifted soil and ground layers into ditch; forming ridge above ditch by compacting soil and ground. Apparatus has frame, automatic hitch bracket, carrier wheels, main and auxiliary working tools adapted for cutting root layer of soil and for creating root passages. Main and auxiliary working tools are made in the form of tines with blades mounted thereon and are arranged in symmetry with one another. Each of tines has tiered additional L- shaped blades. Lever is fixed in inclined position to lower horizontal blade on one of tines (left-handed). Three moldboards are mounted on frame. Front moldboard is equipped with left-handed and right-handed shares. One of moldboards is positioned in symmetry with respect to and forward of working tool tines. Two other moldboards are positioned laterally of working tools tines. Moldboards are equipped with auger conveyors. Side moldboard sections are arranged in opposed relation forward of compacting roller for imparting required profile to compacted soil layer over ditch. EFFECT: increased productivity of licorice brushwood, reduced material, power and labor consumption, provision for producing standard roots and improved erosion protection of soil. 3 cl, 11 dwg
