File:At the end of the ridge - geograph.org.uk - 982761.jpg
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editDescriptionAt the end of the ridge - geograph.org.uk - 982761.jpg |
English: At the end of the ridge. Having reached the end of the harvested ridges the two machines disengage, if only briefly in order to turn around, before realigning themselves once again to resume their task, this time headed in the opposite direction. – What at first glance looks like stubble are the dried remains of flailed potato vines. On maturity of the tubers the potato vines are killed in order to terminate growth and hence control tuber size, and to set skin, which reduces skinning and bruising during harvest, and shrinkage in storage. The most common method of vine killing is chemical desiccation. Sometimes a flail vine shredder (982636, 982683) is used, an implement consisting of varying knife lengths to accommodate the contours of the hill and furrow, producing a very rapid vine kill by mechanically removing all but about 15 centimetres of the vines which are then removed by chemical desiccation. – The crop is now ready for harvesting and a root crop harvester (red) can be seen working in tandem with a trailer-pulling tractor (green). Most potato harvesters operate by cutting through the ground with a digger blade and forcing the dirt and potatoes over a series of chains that transport the potatoes while removing the dirt and vines. The potatoes are elevated by the chains and other conveyers so that they can reach a sufficient height to be dumped into a truck or trailer and hauled away. This process requires constant cooperation between the harvester and the tractor running side by side.
Deutsch: Kartoffelernte; Roder hat Fallsegel, damit die Kartoffeln beim Fallen nicht mit voller Geschwindgkeit aufprallen. |
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Date | |||
Source | From geograph.org.uk | ||
Author | Evelyn Simak | ||
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![]() ![]() ![]() This file is licensed under the Creative Commons Attribution-Share Alike 2.0 Generic license. Attribution: Evelyn Simak
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Attribution (required by the license) InfoField | Evelyn Simak / At the end of the ridge / | ||
InfoField | Evelyn Simak / At the end of the ridge |
Camera location | 52° 47′ 02″ N, 1° 18′ 59″ E ![]() ![]() | View this and other nearby images on: OpenStreetMap | ![]() |
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Object location | 52° 47′ 03″ N, 1° 19′ 02″ E ![]() ![]() | View this and other nearby images on: OpenStreetMap | ![]() |
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current | 23:08, 22 February 2011 | ![]() | 640 × 480 (112 KB) | GeographBot (talk | contribs) | == {{int:filedesc}} == {{Information |description={{en|1=At the end of the ridge Having reached the end of the harvested ridges the two machines disengage, if only briefly in order to turn around, before realigning themselves once again to resume their ta |
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Camera manufacturer | Canon |
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Camera model | Canon PowerShot S3 IS |
Exposure time | 1/800 sec (0.00125) |
F-number | f/4 |
Date and time of data generation | 14:02, 27 September 2008 |
Lens focal length | 7.3 mm |
Orientation | Normal |
Horizontal resolution | 180 dpi |
Vertical resolution | 180 dpi |
File change date and time | 16:56, 27 September 2008 |
Y and C positioning | Centered |
Software used | Adobe Photoshop CS Windows |
Exif version | 2.2 |
Date and time of digitizing | 14:02, 27 September 2008 |
Image compression mode | 3 |
APEX shutter speed | 9.65625 |
APEX aperture | 4 |
APEX exposure bias | 0 |
Maximum land aperture | 2.875 APEX (f/2.71) |
Metering mode | Pattern |
Flash | Flash did not fire, compulsory flash suppression, red-eye reduction mode |
Color space | sRGB |
Focal plane X resolution | 2,844.4444444444 |
Focal plane Y resolution | 2,840.2366863905 |
Focal plane resolution unit | inches |
Sensing method | One-chip color area sensor |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Digital zoom ratio | 1 |
Scene capture type | Landscape |