File:K-deficient maize on Cedara 2 2003-01-13.jpg
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Summary
| Description |
English: A maize plant showing symptoms of severe potassium deficiency; growing on a highly-weathered kaolinitic soil in on Cedara research farm, KwaZulu-Natal. Such severe symptoms (and very low maize yields) are often associated with exchangeable-K concentrations of less than 50 mg/kg soil. Symptoms are necrosis (tissue death) of tips and margins of the older leaves, along with some chlorosis (yellowing).
Reference: Farina, M.P.W., Channon, P., Thibaud, G.R. and Phipson, J.D., 1992. Soil and plant potassium optima for maize on a kaolinitic clay soil. South African Journal of Plant and Soil, 9(4), pp.193-200. File Name : DSCN0834.JPG File Size : 692.4KB (709004 Bytes) Date Taken : 2003/01/13 08:04:08 Image Size : 2048 x 1536 pixels Resolution : 300 x 300 dpi Bit Depth : 8 bits/channel Protection Attribute : Off Hide Attribute : Off Camera ID : N/A Camera : E885 Quality Mode : NORMAL Metering Mode : Matrix Exposure Mode : Programmed Auto Speed Light : No Focal Length : 15.3 mm Shutter Speed : 1/470.3 second Aperture : F3.8 Exposure Compensation : 0 EV White Balance : Auto Lens : Built-in Flash Sync Mode : Normal Exposure Difference : N/A Flexible Program : N/A Sensitivity : Auto Sharpening : Auto Image Type : Color Color Mode : N/A Hue Adjustment : N/A Saturation Control : Normal Tone Compensation : Auto Latitude(GPS) : N/A Longitude(GPS) : N/A Altitude(GPS) : N/A |
| Date | |
| Source | Own work |
| Author | Alandmanson |
| Camera location |  | View this and other nearby images on: OpenStreetMap |  |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 13:09, 30 July 2017 | | 2,048 × 1,536 (646 KB) | Alandmanson | User created page with UploadWizard |
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