Phosphorus 
              Deficiency Symptoms
              :  
              Slow, weak and stunted growth with dark to blue-green  coloration to appear on older leaves of some plants. Under severe deficiency,  purpling in leaves and stems may appear. Delayed maturity and poor seed and  fruit development. 
              Correction Measure
                : 
               
              Foliar spray of DAP 2% at fortnightly  interval. 
                
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