Nitrogen deficiency in Maize

Symptomer
Affected plants show stunted, sparse growth. The leaves turn uniformly pale green. The oldest leaves on the bottom show yellow discoloration and subsequent necrosis proceeding from the leaf tip.

Årsak
Nitrogen deficiency Sulphur deficiency can cause similar symptoms but starts on the younger leaves, whereas paling due to N deficiency is detectable on older leaves first.

Symptomer
Reduced cob size and uncomplete cob fill due to N deficiency.

Årsak
Nitrogen deficiency on cob (right)

Symptomer
Affected plants show spindly, sparse growth. On the older leaves, V-shaped yellowing on the leaf tips progresses towards the base, so that leaves finally turn uniformly pale green/yellow. Stalks get a reddish discoloration. The oldest leaves on the bottom become necrotic.

Årsak
Nitrogen deficiency Sulphur deficiency can cause similar chloroses but starts on the younger leaves, whereas paling due to N deficiency is detectable on older leaves first.

Symptomer
Leaves turn pale green/yellow beginning along main vein and then from leaf tip (V-shape). Necrosis develops from leaf tip as deficiency continues.

Årsak
Nitrogen deficiency

Symptomer
Leaves turn pale green/yellow beginning along main vein and then from leaf tip (V-shape). Necrosis develops from leaf tip as deficiency continues.

Årsak
Nitrogen deficiency

Symptomer
Affected plants show stunted, sparse growth. The leaves turn uniformly pale green.

Årsak
Nitrogen deficiency Sulphur deficiency can cause similar chloroses but starts on the younger leaves, whereas paling due to N deficiency is detectable on older leaves first