Question

In a survey done in an agricultural area the crops in the area shows various symptoms.

• Chlorosis 
• Necrosis 
• Delay flowering 

Name the elements whose deficiency causes these symptoms.

Answer 1

• N, P, K, Mg 
• Chlorosis – N, K, Mg, S, Fe, Mn, etc. 
• Necrosis – K, Mg, Ca and Cu 
• Delay flowering – N, S, and Mo