The plough (Plow in American spelling:) is a tool used in farming for initial cultivation of soil in preparation for sowing seed or planting. It has been a basic instrument for most of recorded history, and represents one of the major advances in agriculture. The primary purpose of ploughing is to turn over the upper layer of the soil, bringing fresh nutrients to the surface, while burying weeds and the remains of previous crops, allowing them to break down. It also aerates the soil, and allows it to hold moisture better. In modern use, a ploughed field is typically left to dry out, and is then harrowed before planting.
Ploughs were initially pulled by oxen, and later in many areas by horses. In industrialised countries, the first mechanical means of pulling a plough used steam-power (ploughing engines or steam tractors), but these were gradually superseded by internal-combustion-powered tractors. In the past two decades plough use has reduced in some areas (where soil damage and erosion are problems), in favour of shallower ploughing and other less invasive tillage techniques.
Ploughs are even used under the sea, for the laying of cables.
There are various types of plough, and these have evolved to suit the increasing size of modern tractors, and the demand to increase productivity (higher acreage / hour).
Manufacturers[edit | edit source]
- Fisher Humphries
- Ford / Ransomes, Sims & Jefferies
- John Deere
- Massey Ferguson
- Ransomes, Sims & Jefferies
See also[edit | edit source]
- List of Types of Agricultural Machinery
- Agricultural machinery
- Shows and Meets - places were examples can be seen, including some in action at working days.
References / sources[edit | edit source]
- Wikipedia (see Wikipedia:Plough for more details
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