File:Medicago sativa plant1 (10603928013).jpg
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DescriptionMedicago sativa plant1 (10603928013).jpg | Introduced, yearlong-green, perennial, erect legume; to 1 m tall. Leaves have 3 leaflets, each to 30 mm long and with toothed margins near the tip; the stalk of central leaflet is longer than the two lateral ones. Flowerheads are racemes of 20-30, mostly purple, pea-like flowers. Pods are cylindrical and spineless, with 2-3 coils. Flowering is from spring to autumn. A native of the Mediterranean and Asia, it is sown on deep well-drained soils (e.g. alluvial flats) and is naturalised along roadsides. Does not like acid soils with a pHCa below 5 and is very sensitive to aluminium to depth. Deep-rooted, high quality, high production potential legume, it is suitable for hay, silage, grazing and cropping. Varieties vary in their winter dormancy and disease resistance. There are a number of leaf and crown diseases which can affect lucerne stands on the coast, so careful variety selection and stand management is essential. Poor basal cover of pure lucerne stands can lead to erosion. Weed competition can severely reduce lucerne establishment – plan well ahead. Causes bloat in cattle and photosensitisation in horses. Requires rotational grazing for best production and persistence. Cut or graze at 10 per cent flower or when crown shoots are 1-2 cm long on 50 per cent of plants. Do not graze below 5 cm. Back fencing aids persistence and production when used for grazing. |
Date | |
Source | Medicago sativa plant1 |
Author | Harry Rose from South West Rocks, Australia |
Camera location | 29° 25′ 49.19″ S, 149° 52′ 56.69″ E | View this and other nearby images on: OpenStreetMap | -29.430330; 149.882415 |
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This file is licensed under the Creative Commons Attribution 2.0 Generic license.
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This image was originally posted to Flickr by Macleay Grass Man at https://www.flickr.com/photos/73840284@N04/10603928013. It was reviewed on 21 May 2015 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-2.0. |
21 May 2015
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current | 07:16, 21 May 2015 | 4,912 × 3,264 (7.38 MB) | Amada44 (talk | contribs) | Transferred from Flickr via Flickr2Commons |
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This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
Image title | SONY DSC |
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Camera manufacturer | SONY |
Camera model | SLT-A55V |
Exposure time | 1/50 sec (0.02) |
F-number | f/22 |
ISO speed rating | 100 |
Date and time of data generation | 10:27, 18 October 2011 |
Lens focal length | 30 mm |
Latitude | 29° 25′ 49.19″ S |
Longitude | 149° 52′ 56.69″ E |
Altitude | 235.2 meters above sea level |
Orientation | Normal |
Horizontal resolution | 350 dpi |
Vertical resolution | 350 dpi |
Software used | SLT-A55V v1.10 |
File change date and time | 10:27, 18 October 2011 |
Y and C positioning | Co-sited |
Exposure Program | Aperture priority |
Exif version | 2.3 |
Date and time of digitizing | 10:27, 18 October 2011 |
Meaning of each component |
|
Image compression mode | 3 |
APEX brightness | 9.12 |
APEX exposure bias | −1 |
Maximum land aperture | 3 APEX (f/2.83) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash did not fire, compulsory flash suppression |
Supported Flashpix version | 1 |
Color space | sRGB |
File source | Digital still camera |
Scene type | A directly photographed image |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Manual white balance |
Focal length in 35 mm film | 45 mm |
Scene capture type | Standard |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
GPS time (atomic clock) | 00:27:32.756 |
Receiver status | Measurement in progress |
Measurement mode | 3-dimensional measurement |
Speed unit | Kilometers per hour |
Speed of GPS receiver | 0.5 |
Reference for direction of movement | True direction |
Direction of movement | 214.19 |
Geodetic survey data used | WGS-84 |
GPS date | 18 October 2011 |
GPS differential correction | 0 |
GPS tag version | 0.0.3.2 |