BASIC SOIL CULTIVATION METHOD AND RIPPER PLOW-THINNER Russian patent published in 1999 - IPC

FIELD: agriculture. SUBSTANCE: method involves cultivating arable horizon and simultaneously thinning subsurface horizon. Arable horizon is cultivated in layers, with top layer being tilled for 15-18 cm depth and layer being turned and bottom layer being tilled by nonmoldboard cultivation method. Ripper plow-thinner has main nonmoldboard rippers mounted on frame and provided with tines, and thinners arranged rearward of each ripper. Thinner is formed as flat asymmetrical hoe with tine. Turning tool is mounted forward of each main nonmoldboard ripper. Method allows natural arable horizon soil structure to be kept and plow travel to be stabilized. EFFECT: reduced power consumption, improved quality of cultivated soil and provision for maintaining natural arable horizon structure. 4 cl, 2 dwg