R#68 TOMATOES

                                                  
NORMAL: A normal tomato leaf has good green color and a     
slightly curved stem.
                                      
NITROGEN DEFICIENCY:. Leaves show generalized               
chlorosis(yellowing). Overall growth is impaired and  older 
leaves drop off. The stems are yellow and rigid.
            
PHOSPHORUS DEFICIENCY: The leaves, especially the middle,   
veins and petioles, darken and show a dull purple tint.
      
POTASSIUM DEFICIENCY: Leaf margins die and leaves are       
mottled. They curl down, showing a slightly convex upper leaf 
surface.
                                                    
CALCIUM DEFICIENCY: Growing point leaves turn brown at the  
edges and die back, Young leaves show a purplish-brown      
tint, while older leaves remain green.
                      
MANGANESE DEFICIENCY: Yellowing occurs in the tissue between 
the leaf veins, and the leaves appear very mottled. the     
mottling shows up  first on the young leaves. 
              
IRON DEFICIENCY: Yellowing occurs between the veins on      
young leaves, especially at the base of the leaflets. 
      
SULFUR DEFICIENCY: Leaves turn light green, rather than     
yellow. Growth is poor and stems are spindly.