| Characteristic Symptoms: | |
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Phosphorous deficiency marks leaves with reddish-purple, particularly on young plants. | 
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Stunting of affected plants may sometimes occur. | 
| Conditions for Disease Development: | |
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Phosphorus deficiency symptoms often occur as young plants are exposed to good growing conditions following cool and often wet conditions. | 
| Management and Control: | |
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 Maintain balance fertilization.  | 
References:
https://www.pioneer.com/home/site/mobile/grow/corn/nutrient-deficiency/
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