|Nitrogen deficiency (maize)|
Necrosis: Severe nutrient deficiency will result in the death of plant parts or perhaps the entire plant. The dead tissue that remains on a still-living plant is called necrotic tissue.
|Firing: Potassium-deficient cashew|
|Firing: Potassium-deficient maize|
|Phosphorus deficient maize|
|Stunted canola (P deficiency)|
Do not wait until visible symptoms of deficiency show up before you plan your crop nutrition program. But when you are in the field, keep your eyes open for plants that do not look quite right and then figure out what is the problem. Use visual observations to back up your on-going program of soil testing and plant analysis.