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agricultural machinery

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agricultural machinery
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{{Refimprove|date=December 2012}}File:Claas-lexion-570-1.jpg|thumb|A German combine harvester by ClaasClaasFile:Lite-Trac Crop Sprayer.jpg|thumb|A British crop sprayer by Lite-TracLite-Trac'''Agricultural machinery'

History

The Industrial Revolution

With the coming of the Industrial Revolution and the development of more complicated machines, farming methods took a great leap forward.Agricultural engineering Britannica Online. {{Retrieved | accessdate=2012-12-25}} Instead of harvesting grain by hand with a sharp blade, wheeled machines cut a continuous swath. Instead of threshing the grain by beating it with sticks, threshing machines separated the seeds from the heads and stalks. The first tractors appeared in the late 19th century.Tractor (vehicle) Britannica Online. {{Retrieved | accessdate=2012-12-25}}

Steam power

Power for agricultural machinery was originally supplied by ox or other domesticated animals. With the invention of steam power came the portable engine, and later the traction engine, a multipurpose, mobile energy source that was the ground-crawling cousin to the steam locomotive. Agricultural steam engines took over the heavy pulling work of oxen, and were also equipped with a pulley that could power stationary machines via the use of a long belt. The steam-powered machines were low-powered by today's standards but, because of their size and their low gear ratios, they could provide a large drawbar pull. Their slow speed led farmers to comment that tractors had two speeds: "slow, and damn slow."

Internal combustion engines

The internal combustion engine; first the petrol engine, and later diesel engines; became the main source of power for the next generation of tractors. These engines also contributed to the development of the self-propelled, combined harvester and thresher, or combine harvester (also shortened to 'combine'). Instead of cutting the grain stalks and transporting them to a stationary threshing machine, these combines cut, threshed, and separated the grain while moving continuously through the field.

Types

File:John Deere cotton harvester kv02.jpg|thumb| A John DeereJohn Deere(File:Agricultural machinery.jpg|thumb|From left to right: John Deere 7800 tractor with Houle slurry trailer, Case IH combine harvester, New Holland FX 25 forage harvester with corn head.)(File:Tr85.jpg|thumb|A New Holland TR85 combine harvester)Combines might have taken the harvesting job away from tractors, but tractors still do the majority of work on a modern farm. They are used to push/pull implements—machines that till the ground, plant seed, and perform other tasks.Tillage implements prepare the soil for planting by loosening the soil and killing weeds or competing plants. The best-known is the plow, the ancient implement that was upgraded in 1838 by John Deere. Plows are now used less frequently in the U.S. than formerly, with offset disks used instead to turn over the soil, and chisels used to gain the depth needed to retain moisture.The most common type of seeder is called a planter, and spaces seeds out equally in long rows, which are usually two to three feet apart. Some crops are planted by drills, which put out much more seed in rows less than a foot apart, blanketing the field with crops. Transplanters automate the task of transplanting seedlings to the field. With the widespread use of plastic mulch, plastic mulch layers, transplanters, and seeders lay down long rows of plastic, and plant through them automatically.After planting, other implements can be used to cultivate weeds from between rows, or to spread fertilizer and pesticides. Hay balers can be used to tightly package grass or alfalfa into a storable form for the winter months.Modern irrigation relies on machinery. Engines, pumps and other specialized gear provide water quickly and in high volumes to large areas of land. Similar types of equipment can be used to deliver fertilizers and pesticides.Besides the tractor, other vehicles have been adapted for use in farming, including trucks, (:Category:agricultural aircraft|airplane)s, and helicopters, such as for transporting crops and making equipment mobile, to aerial spraying and livestock herd management.

New technology and the future

The basic technology of agricultural machines has changed little in the last century. Though modern harvesters and planters may do a better job or be slightly tweaked from their predecessors, the US$250,000 combine of today still cuts, threshes, and separates grain in the same way it has always been done. However, technology is changing the way that humans operate the machines, as computer monitoring systems, GPS locators and self-steer programs allow the most advanced tractors and implements to be more precise and less wasteful in the use of fuel, seed, or fertilizer. In the foreseeable future, there may be mass production of driverless tractors, which use GPS maps and electronic sensors.

Open source agricultural equipment

Many farmers are upset by their inability to fix the new types of high-tech farm equipment.WEB,weblink New High-Tech Farm Equipment Is a Nightmare for Farmers, This is due mostly to companies using intellectual property law to prevent farmers from having the legal right to fix their equipment (or gain access to the information to allow them to do it).WEB,weblink We Can't Let John Deere Destroy the Very Idea of Ownership, In October 2015 an exemption was added to the DMCA to allow inspection and modification of the software in cars and other vehicles including agricultural machinery.Exemption to Prohibition on Circumvention of Copyright Protection Systems for Access Control Technologiesweblink Open Source Agriculture movement counts different initiatives and organizations such as Farm Labs which is a network in EuropeWEB,weblink This is the Beginning of a network of open laboratories for agricultural research and experimentation, farmlabs.org, farmlabs.org, en, 2019-07-20, , l'Atelier Paysan which is a cooperative to teach farmers in France how to build and repair their tools WEB,weblink L’Atelier Paysan, Gaillard, Chris, L’Atelier Paysan, fr, 2019-07-20, JOURNAL, Chance, Quentin, Meyer, Morgan, 2017-06-06, L’agriculture libre. Les outils agricoles à l’épreuve de l’open source,weblink Techniques & Culture. Revue semestrielle d’anthropologie des techniques, fr, 67, 236–239, 0248-6016, , and Ekylibre which is an open-source company to provide farmers in France with open source software (SaaS) to manage farming operations.WEB,weblink Ekylibre, ekylibre.com, 2019-07-20, In the United States, the MIT Media Lab's Open Agriculture Initiative seeks to foster "the creation of an open-source ecosystem of technologies that enable and promote transparency, networked experimentation, education, and hyper-local production".WEB,weblink Group Overview ‹ Open Agriculture (OpenAg), MIT Media Lab, 2019-07-20, It develops the Personal Food Computer, an educational project to create a "controlled environment agriculture technology platform that uses robotic systems to control and monitor climate, energy, and plant growth inside of a specialized growing chamber". It includes the development of Open PhenomWEB,weblink Project Overview ‹ Open Phenome Project, MIT Media Lab, 2019-07-20, , an open source library with open data sets for climate recipes which link the phenotype response of plants (taste, nutrition) to environmental variables, biological, genetic and resource-related necessary for cultivation (input).WEB,weblink recipe:start [OpenAg], wiki.openag.media.mit.edu, 2019-07-20, Plants with the same genetics can naturally vary in color, size, texture growth rate, yield, flavor and nutrient density according to the environmental conditions in which they are produced.

See also

Notable manufacturers

References

{{reflist}}

External links

{{Commons category|Agricultural machines}}

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