File:Woad farm - geograph.org.uk - 237742.jpg
Woad_farm_-_geograph.org.uk_-_237742.jpg (640 × 480 pixels, file size: 83 KB, MIME type: image/jpeg)
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editDescriptionWoad farm - geograph.org.uk - 237742.jpg |
English: Woad farm. The brown vegetation in the field has been sprayed with sulphuric acid. Mike Harrison later Emailed me (Jan 2008) with the following information: "This is a field of potatoes with patches of annual sowthistles. Acid is used as the quickest, least damaging to the potato tubers, as it is not systemic and leaves no residues. Virtually withdrawn from use in 2008, due to crop growing protocols not allowing its use. The thistles are a late spring germinating weed and are not easily controlled with herbicides used on potatoes; they have become more prevalent in recent years all along the wash marshes." |
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Date | |||
Source | From geograph.org.uk | ||
Author | Tim Heaton | ||
Permission (Reusing this file) |
This file is licensed under the Creative Commons Attribution-Share Alike 2.0 Generic license. Attribution: Tim Heaton
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Camera location | 52° 51′ 17″ N, 0° 06′ 11″ W | View this and other nearby images on: OpenStreetMap | 52.854600; -0.103000 |
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Object location | 52° 51′ 23″ N, 0° 06′ 11″ W | View this and other nearby images on: OpenStreetMap | 52.856400; -0.103000 |
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 02:48, 1 February 2010 | 640 × 480 (83 KB) | GeographBot (talk | contribs) | == {{int:filedesc}} == {{Information |description={{en|1=Woad farm. The brown vegetation in the field has been sprayed with sulphuric acid. Mike Harrison later Emailed me (Jan 2008) with the following information: "This is a field of potatoes with patch |
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Camera manufacturer | Canon |
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Camera model | Canon PowerShot A70 |
Exposure time | 1/1,000 sec (0.001) |
F-number | f/4.5 |
Date and time of data generation | 16:08, 10 September 2006 |
Lens focal length | 5.40625 mm |
Orientation | Normal |
Horizontal resolution | 180 dpi |
Vertical resolution | 180 dpi |
File change date and time | 16:08, 10 September 2006 |
Y and C positioning | Centered |
Exif version | 2.2 |
Date and time of digitizing | 16:08, 10 September 2006 |
Image compression mode | 5 |
APEX shutter speed | 9.96875 |
APEX aperture | 4.34375 |
APEX exposure bias | 0 |
Maximum land aperture | 2.96875 APEX (f/2.8) |
Metering mode | Pattern |
Flash | Flash did not fire, auto mode |
Color space | sRGB |
Focal plane X resolution | 9,846.1538461538 |
Focal plane Y resolution | 9,846.1538461538 |
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 | Standard |