SIMULTANEOUS PRESOWING SOIL CULTIVATION AND SOWING METHOD Russian patent published in 2003 - IPC

FIELD: agriculture. SUBSTANCE: method involves cultivating soil and simultaneously sowing by dividing soil layer into three layers; forming middle layer at depth of from 3-4 cm to 6-8 cm while undercutting weedage; creating fine-grain structure with soil aggregates having size of 0.5-5.0 mm and density of 1.0-1.1 g/cu.cm; simultaneously forming lower layer at depth of 6-8 cm having thickness of 4-6 mm and density of 1.15-1.25 g/cu.cm; sowing farm crop seeds on compacted lower layer; forming upper 3-4 cm thick layer of fine-grain structure with soil aggregates having 0.2-3.0 cm size and density of 0.75-0.85 g/cu.cm; combing out plant remains from upper layer and using plant remains as mulch for cultivated upper layer. Method allows crop yield to be increased by 15-19%. EFFECT: increased moisture-holding capacity and moisture-saving capacity of soil, increased efficiency in protecting field from wind and water erosion and in cleaning of field from weedage, and reduced expenses for effectuating of method. 1 dwg