Nutrients

N Nitrogen
P Phosphorus
K Potassium
Mg Magnesium
Ca Calcium
S Sulphur
B Boron
Cu Copper
Fe Iron
Mn Manganese

Carrots - Growth retardation

Symptoms
Light green discoloration of the complete foliage, being first visible on older leaves. Plant growth is stunted.

Reasons
Nitrogen deficiency

Carrots - Growth retardation

Symptoms
Light green discoloration of the complete foliage, being first visible on older leaves. Plant growth is stunted.

Reasons
Nitrogen deficiency

Carrots - Growth retardation

Symptoms
Light green discoloration of the complete foliage, being first visible on older leaves. Plant growth is stunted.

Reasons
Nitrogen deficiency

Carrots - Growth retardation

Symptoms
Root growth of nitrogen deficient plants is stunted.

Reasons
Nitrogen deficiency (right)

Carrots - Chlorosis

Symptoms
Single leaflets on older leaves show a bleached, whitish discoloration on their tips.

Reasons
Nitrogen deficiency

Carrots - Growth retardation

Symptoms
Root growth of nitrogen deficient plants is severely stunted.

Reasons
Nitrogen deficiency (right)

Nitrogen deficiency vs. healthy plant made worse by

  • Low or high pH soils
  • Sandy or light soils (leaching
  • ) Low organic matter
  • Drought conditions
  • High rainfall (leaching) or heavy irrigation
  • Addition or high levels of non-decomposed organic matter/manure (eg straw)
  • Fast growing crops

Nitrogen is important for

  • Component of enzymes, vitamins, chlorophyll and other cell constituents
  • Essential for crop growth, development and high yields
  • Necessary for carotene synthesis and therefore also for root colour