METHOD FOR FORMING OF RIDGES IN THE PROCESS OF PRESOWING TREATMENT OF LOAMY SOIL AND APPARATUS FOR PERFORMING THE SAME Russian patent published in 2006 - IPC A01B79/00 A01B13/02 A01B49/02 

FIELD: agriculture, may be used in vegetable growing.

SUBSTANCE: method involves cutting furrows by means of hiller hoes; forming ridges by raising, turning and laying of undercut soil layers on ridge bases; grinding soil crumbs by means of rotavator knives to seeding depth; leveling and forming ridges having height below 15 cm and apex width within 15-20 cm; forming concave curvature on surface of apex of each ridge, said curvature having elliptical section, and said ridges having slopes with angles of 45-55 deg; grinding soil crumbs to sizes of about 3 mm in sowing zone on surface at the level not below 60% of ridge surfaces by means of rotavator knives; providing soil density within the range of 1.15-1.25 g/cm³ using pressure of roller. Apparatus for forming ridges comprises frame carrying sequentially arranged sections of hiller hoes, rotavation drum with housing, and roller for compacting of ridges formed. Side shields of housing serve as ridge forming members. Roller is pivotally mounted on frame by means of pressing spring-loaded bar, is positioned between side shields and has width smaller than width of ridge surfaces. Side wings of hiller hoes on landward edges are equipped with cutting plates pivotally attached to land edges and are connected with one another through tensioning mechanism allowing ridge slope angle and width to be adjusted.

EFFECT: provision for retention of atmospheric precipitations, elimination of water and wind erosion, and provision for growing of small-sized seed vegetable crops without irrigation thereof in water deficiency zones.

3 cl, 5 dwg