Tillage Methods and Equipment
A tillage tool is defined in this textbook as an individual soil-engaging element, such as a plow bottom or a disk blade. A tillage implement consists of a single tool…
Soil Tillage
Tillage may be defined as the mechanical manipulation of soil for any purpose, but usually for nurturing crops. In agriculture, the objectives of soil tillage are: Ø To develop a desirable…
Traction Aids
A number of techniques are available for increasing the tractive performance of a tractor. One of the earliest techniques was to use dual or triple tires on each rear axle…
Tires and Traction
The power of a tractor engine may be transmitted through the PTO shaft, the hydraulic system, or through a hitch. The latter is the most common means of transmitting tractor…
Control of hitches
A single-acting hydraulic cylinder is usually provided to raise the lower links of a three-point hitch and lowering is accomplished by the weight of the attached implement. In the system…
Hitching and weight transfer
Hitching affects both vertical and horizontal force relations between tractor and implement. Vertical effects on the tractor are of special interest because of their effect on the tractive performance of…
Tractor Hitching, Traction, And Testing
Tractors frequently serve as the power source for field machines. A hitch connects the implement to the tractor. The tractor provides the tractive force to move the implement through the…
Map coordination
The data inputs to a FIS can be in a variety of formats. Manual soil samples are taken at grid intersections in the field. Some implement-mounted sensors can produce continuous…
Geospacial Information System
As used in SSCM, a geospacial information system, or GIS, is a computer-based system for storing, analyzing, and displaying spatially-referenced data. The coverage of a GIS is selected to encompass…
Global Positioning System
Development of the global positioning system, or GPS, began in 1973 under the leadership of Colonel Bradford Parkinson of the US Air Force; the system is still operated and maintained…
