Nutrients

N Nitrogen
P Phosphorus
K Potassium
B Boron

Sugarcane - Chlorosis

Symptoms
Symptoms start with chlorosis and necrosis on the tips of older leaves and proceed downwards on either side or only on one side of the midrib. Furthermore, a dark strip-like discoloration of the midrib can be found.

Reasons
Potassium deficiency

Sugarcane - Chlorosis

Symptoms
Symptoms start with chlorosis and necrosis on the tips of older leaves and proceed downwards on either side or only on one side of the midrib.

Reasons
Potassium deficiency

Potassium deficiency made worse by

  • Acidic soils (low pH)
  • Sandy or light soils (leaching)
  • Drought conditions
  • High rainfall (leaching)
  • or heavy irrigation
  • Heavy clay (illite) soils
  • Soils with low K reserves
  • Magnesium rich soils

Potassium is important for

  • Productive growth, i
  • e
  • quick canopy closure, strong stalk development, big root mass
  • High yield and sugar quality
  • Essential for plant water use efficiency
  • Improves plant tolerance to pests, diseases and to lodging