This classic example of K deficiency in corn at V8 to V9 growth stage showed chlorosis of outer edges of older leaves. This photo was taken from an experimental plot that received 34 kg K/ha. Soil analysis showed 50 ppm K, while plant analysis recorded the plant tissue K at 0.4%.

Date: July 24, 2013
Nutrient: Potassium (K)
Crop: maize
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