Question

Necrosis in crops is due to the deficiency of
(1)Ca, K, S, Mo
(2)N, K, S, Mo
(3)N, S, Fe, Zn
(4)Mg, S, Mn, Ca

Answer 1

It is caused by the deficiency of nutrients such as calcium magnesium, potassium and copper.

Explanation:

• Necrosis is a plant disease, that causes injury in the cells of the plants.
• The symptoms of this disease are caused by the pathogens such as viruses, bacteria and fungi.
• Some external factors also cause necrosis such as toxins, infections and trauma.
• Mainly, it is also caused by the deficiency of nutrients such as calcium magnesium, potassium and copper.
• It eventually leads the plants to death.

Also learn more

How does the deficiency of nutrients affect the growth of plants?

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