Potassium Deficiency Symptoms

Potassium is highly mobile within plants, and so symptoms of deficiency usually appear on older leaves.  Look for yellowing, firing or spotting on the margins of older leaves as a sign of potassium deficiency.

As a guide, these photos show deficiency symptoms on some common crop and pasture species. Click on individual photos to enlarge them.

BANANA
CANOLA

SUGARCANE

CLOVER

COTTON
MAIZE
RICE

LUCERNE

PEANUT
SOYBEAN
SORGHUM