Harrows, whether spring tooth, spike tooth or disc harrows can have a drag connection or have a 3 point mounting. A drag harrow is pulled and cannot be backed up. Three point implements can be raised and lowered hydraulicly and maneuvered more easily. A spring-tooth harrow is a type of harrow, and specifically a type of tine harrow. It uses many flexible iron teeth mounted in rows to loosen the soil before planting. A

drag harrow A drag harrow, a type of spring-tooth harrow, is a largely outdated type of soil Tillage, cultivation Tool, implement that is used to smooth the ground as well as loosen it after it has been plowed and cultipacker, packed. It uses many flexibl ...

more specifically refers to a largely outdated type of

soil Soil, also commonly referred to as earth, is a mixture of organic matter, minerals, gases, water, and organisms that together support the life of plants and soil organisms. Some scientific definitions distinguish dirt from ''soil'' by re ...

cultivation implement that is used to smooth the ground as well as loosen it after it has been

plow A plough or (Differences between American and British spellings, US) plow (both pronounced ) is a farm tool for loosening or turning the soil before sowing seed or planting. Ploughs were traditionally drawn by oxen and horses but modern ploughs ...

ed and packed. It uses many flexible

iron Iron is a chemical element; it has symbol Fe () and atomic number 26. It is a metal that belongs to the first transition series and group 8 of the periodic table. It is, by mass, the most common element on Earth, forming much of Earth's o ...

teeth usually arranged into rows. It is set on the ground and pulled and cannot be backed up. It has no

hydraulic Hydraulics () is a technology and applied science using engineering, chemistry, and other sciences involving the mechanical properties and use of liquids. At a very basic level, hydraulics is the liquid counterpart of pneumatics, which concer ...

functionality and has to be raised/adjusted with one or multiple manual levers. It was originally pulled by draft animals and later adapted to tractors. It is a largely outdated piece of farm equipment, having been replaced by more modern tillage equipment, however, smaller farmers still use them.

Uses

A drag harrow is used to loosen and even out soil after it has been plowed and packed. The drag harrow also kills some weeds that may be present, but it is not very efficient in doing so, and it is not one of its primary functions.

In modern times

The non-hydraulic drag harrow is not often used in modern farming as other harrows have proven to be more suitable, such as the

disc harrow A disk harrow is a harrow (tool), harrow whose cutting edges are a row of concave metal discs, which may be scalloped or set at an oblique angle. It is an list of agricultural machinery, agricultural implement that is used to tillage, till the ...

. Another reason they are not often used is because they cannot be controlled hydraulically, meaning that the operator is required to dismount from the

tractor A tractor is an engineering vehicle specifically designed to deliver a high tractive effort (or torque) at slow speeds, for the purposes of hauling a Trailer (vehicle), trailer or machinery such as that used in agriculture, mining or constructio ...

to adjust it or unclog it. However it is used as a drag behind several other implements such as a rod weeder. Due to their low cost and simplicity, old fashioned are still widely used by small farmers.

References

External links

{{Commonscat-inline, Spring-tooth harrows Agricultural machinery

Uses

In modern times

See also

References

External links