Nutrients

N Nitrogen
K Potassium
Ca Calcium
S Sulfur
B Boron
Fe Iron
Mn Manganese
Zn Zinc

Rice - Chlorosis

Symptoms
Older leaves show chlorosis of leaf tips and adjacent leaf margins.

Reasons
Potassium deficiency (Pansukh disease in Punjab)

Rice - Chlorosis

Symptoms
Older leaves show chlorosis and a beginning redbrown necrosis on leaf margins.

Reasons
Potassium deficiency

Rice - Chlorosis

Symptoms
Older leaves show chlorosis of leaf margins and tips with brown spotting.

Reasons
Potassium deficiency (Pansukh disease in Punjab)

Rice - Chlorosis

Symptoms
Older leaves show chlorosis of leaf margins and tips with brown spotting.

Reasons
Potassium deficiency (Pansukh disease in Punjab)

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

  • Improves plant growth and development
  • Improved resistance to climatic stress
  • Improves yield