Nutrients

N Nitrogen
P Phosphorus
K Potassium
Mg Magnesium
S Sulfur
B Boron
Cu Copper
Fe Iron
Mn Manganese
Zn Zinc

Cotton - Chlorosis

Symptoms
Reduced plant height and uniform yellow chlorosis of leaves are signs of nitrogen deficiency.

Reasons
Nitrogen deficiency N deficiency foliar symptoms differ depending on the season: In the early or midseason, older leaves show yellowgreen chlorosis, whereas a reddish discoloration appears later in the season.

Cotton - Chlorosis

Symptoms
Reduced plant height and a uniform yellow chlorosis of leaves are signs of severe nitrogen deficiency.

Reasons
Severe nitrogen deficiency (right)

Cotton - Chlorosis

Symptoms
Reduced plant height and uniform yellow chlorosis of leaves are signs of nitrogen deficiency. A faint reddish tint is spreading over the leaf blade.

Reasons
Nitrogen deficiency N deficiency foliar symptoms differ depending on the season: In the early or midseason, older leaves show yellowgreen chlorosis, whereas a reddish discoloration appears later in the season.

Cotton - Chlorosis

Symptoms
Reduced plant height and uniform yellow chlorosis of leaves are signs of nitrogen deficiency. A faint reddish tint is spreading over the leaf blade.

Reasons
Nitrogen deficiency N deficiency foliar symptoms differ depending on the season: In the early or midseason, older leaves show yellowgreen chlorosis, whereas a reddish discoloration appears later in the season.

Cotton - Chlorosis

Symptoms
Reduced plant height and uniform yellow chlorosis of leaves are signs of nitrogen deficiency. A faint reddish discoloration is spreading over the mature leaf blade. Stems and stalks turn red as well. Early flower development.

Reasons
Nitrogen deficiency (control vs moderate deficiency) N deficiency foliar symptoms differ depending on the season: In the early or midseason, older leaves show yellowgreen chlorosis, whereas a reddish discoloration appears later in the season.

Cotton - Chlorosis

Symptoms
Reduced plant height and uniform yellow chlorosis of leaves are signs of nitrogen deficiency.

Reasons
Nitrogen deficiency (right) N deficiency foliar symptoms differ depending on the season: In the early or midseason, older leaves show yellowgreen chlorosis, whereas a reddish discoloration appears later in the season.

Cotton - Chlorosis

Symptoms
Reduced plant height and uniform yellow chlorosis of leaves are signs of nitrogen deficiency. A faint reddish discoloration is spreading over the mature leaf blade. Stems and stalks turn red as well. Buds show purple spots similar to plants with P deficiency. Early flower development combined with shorter flowering period.

Reasons
Nitrogen deficiency N deficiency foliar symptoms differ depending on the season: In the early or midseason, older leaves show yellowgreen chlorosis, whereas a reddish discoloration appears later in the season.

Nitrogen deficiency 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

  • Improved vigor
  • Increased yield
  • Stress relief

Yara recommended fertilizers for Nitrogen

YaraVera® AMIDAS® 40-0-0

YaraVera® AMIDAS® 40-0-0

Cotton: 150-400# YaraVera® Amidas™ 40-0-0/acre in split applications as part of a nitrogen management plan according to projected yield, soil type and soil test. Apply 30-50% pre-plant with the remainder at sidedress in order to supply adequate N during peak demand periods. Amidas™ is an excellent source of readily available sulfate sulfur. It is delivered in a 7.3:1 N to S ratio which is ideal for amino acid and protein production. Consult your agronomist for local recommendations.

Read more about YaraVera® AMIDAS® 40-0-0