Nitrogen

• Die back of older leaves.
• Leaf baldes turn light green to yellow.
• Short and slender stalks
• Tips and margins of older leaves become necrotic.

In the picture: Nitrogen deficiency symptom (Source: D.L. Anderson)

In the picture: phosphorus deficiency symptom

Phosphorus

• Red and purple discolouration of tips and margins
• Slender leaves
• Short sand slender stalks
• Poor or no tillering

Potassium

• Yellow-orange chlorosis of leaf borders & tips
• Stalks slender
• Older leaves brown or "fired"
• Spindles distorted producing "bunched top" or "fan' appearance.

Calcium

• Mottling and chlorosis of older leaves
• Spindles often become necrotic at the leaf tip and long margins
• Rusty appearance and premature death of older leaves

In the picture (Source: D.L. Anderson):

Magnesium deficiency symptom

Magnesium

• Mottled or chlorotic appearance at the tip and margins
• Red necrotic lesions resulting in "rusty" appearance
• Internal browning of rind

Sulphur

• Chlorotic young leaves
• Narrower and shorter leaves with faint purplish tinge
• Slender stalks

Copper

• Green splotches with leaves eventually showing bleaching
• Stalk and meristems lack turgidity
• Reduced internodal length and tillering.

In the picture : 

Iron deficiency symptom

Iron

• Varying degrees of chlorosis
• Interveinal chlorosis from tip to base of leaves.

Manganese

• Occurrence of interveinal chlorosis from leaf tip towards the middle of leaf.
• Bleaching of leaves under severe deficiency.

Boron

• Distorted leaves
• Formation of translucent lesions or water sacks along leaf margins
• Brittle and bunched with many tillers
• Death of apical meristem.

In the picture: Molybdenum deficiency symptom (source: J.E. Bowen)

Molybdenum

• Short longitudinal chlorotic streaks on the top one-third of the leaf.
• Short and slender stalks
• Slow vegetative growth.

Zinc

• Midrib and leaf margin remain green and yellowing of leaf blade
• Red lesions on leaves
• Reduced tillering and shorter internodes
• Thin stalks with loss of turgidity.