METHOD AND WORKING TOOL FOR IMPROVING NATURAL LICORICE UNDERGROWTH

FIELD: agriculture, agricultural engineering, pharmaceutical, confectionery, canned food, chemical, perfume, food-processing, tobacco industry and some special branches of industry. ^ SUBSTANCE: method involves mowing and grinding licorice vegetative buds and accompanying plants in association of low-productivity licorice undergrowth by means of haying machines to produce cuttings; while mowing, uniformly distributing ground mass over surface of mown strip; providing marker lines and placing planting material in narrow strips at predetermined spacing, with high-quality cuttings of 4-5 years licorice rootages of 12-18 mm diameter and 18-25 cm length being used as planting material; mellowing strips and cutting inclined slits by means of tillage tool; during advancement of machine, moving planting material into inclined slits; simultaneously with planting of cuttings, providing grooves for receiving of mineral fertilizer in surface of inclined wall of slit by means of slitter tine equipped with tiered cutters made in the form of rectangular parallelepipeds; placing nitrogenous fertilizer at norm of 0.2-0.6 kg/running meter in upper tier and phosphorous fertilizer at norm of 1.3-1.8 kg/running meter in middle tier; introducing into lower layer potash fertilizer at norm of 0.8-1.6 kg/running meter for development of plants at second and third years of life; after introducing of mineral fertilizer and placing of cuttings, compacting mellowed strips above inclined slits by means of ring-lug roller sections. Nozzle of pneumatic pipeline is arranged above each cutter. Each pneumatic pipeline is individually connected with seeding unit for withdrawal from fertilizer box of nitrogenous, phosphorous or potash fertilizer. Seeding units are kinematically connected with supporting wheel. Each pneumatic pipeline of tine-cutter is connected with pressure cavity of high-pressure fan equipped with hydraulic drive. ^ EFFECT: increased yield of green mass and provision for applying of mineral fertilizer to different soil depth. ^ 3 cl, 13 dwg