Crop Nutrition

What are the symptoms of Potassium deficiency and excess in plants

20 July 2023, New Delhi: Plants absorb various nutrients to grow. Any imbalance in nutrients may affect the final produce. Hence, a thorough examination of the growing plant can help in identifying particular nutrient stress. Typical signs may show up if a plant is deficient in a specific nutrient. A nutritional deficiency does not immediately result in symptoms. Instead, the regular plant processes are disturbed, leading to an overabundance of some intermediate organic molecules and a deficiency in others. This results in abnormalities that are later recognized as symptoms. 

Symptoms of Potassium deficiency and excess in plants


On the older leaves, the edges will look burned, a symptom known as scorch. Plants will easily lodge and be sensitive to disease infestation. Fruit and seed production will be impaired and of poor quality.


Plants will exhibit typical Mg, and possibly Ca deficiency symp­toms due to a cation imbalance

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