Soil crust loosening apparatus

Soil deflecting and leveling reel

Soil working machine

Spider wheel for a rotary incorporator

Spiker blade

Split ring spring for earth working tool

Teeth arrangement for blade disks

Tillage apparatus having improved cutting and drive structure

Tine and tine and hub assembly

Tine assembly

Tine assembly for a cultivator

Tine assembly for a cultivator

Tined rotary blade for cultivators

Tool assembly

Tool for soil cultivating machine, and machine using such tools

Tubular spike carrying shaft

Wheel assembly for a compacting machine

Zone tillage tool and method