12d65980_ening_Tips_and_Plants___How_to__Plant_Symptoms
[Deficiency] Phosphorus [Plant Uses] Genetic material, root growth, storage and use of energy [Sources] Manure, bonemeal, rock phosphates [Plant Symptoms] 
Purplish leaves Yellow or streaked leaf margins Leaf tips die off Fruits late, poor or absent
Organic Gardening Tips and Plants - How to