SOIL CULTIVATION METHOD AND UNIT Russian patent published in 1997 - IPC

FIELD: agriculture. SUBSTANCE: method involves combining and coordinating soil tillage, irrigation, fertilizer application and sowing operations; using irrigation pipeline as reference line, power line, manure, mineral fertilizer, seed transportation line and as source for applying material into soil. Water is used as energy carrier for driving working tools. Driving force is used to move and rotate working tools. Cutters at both sides of moldboard are used for operation in sequence as moldboard continuation. Axes of center of rotation and cable are aligned. When cultivation unit is moved on slope, furrows are cut in direction transverse to slope and rotational and motion speed are changed in proportion to steepness of slope, i.e. at elevated slopes speed is reduced and at steep slopes speed is increased. As steepness is decreased, speed difference is reduced to zero. Working tool angle is changed in inverse proportion to slope angle. Dependence of engine power on volume of metal used in tractor, motion speed and engagement of propellers with soil must be reduced to zero. Loading of working tool landward board on furrow bottom and side is to be reduced to zero. Lateral forces of share and moldboard are used as wheel loading reducing parameter. EFFECT: increased efficiency, wider operational capabilities and improved quality of soil. 8 cl, 3 dwg