Nutrients

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

Cotton - Chlorosis

Symptoms
Symptoms start on younger leaves which become pale green or yellow. The veins stay green for a while, but at severe deficiency they become chlorotic, too. Leaf size as well as general plant size are reduced with few vegetative branches and small bolls.

Reasons
Sulfur deficiency on leaves Nitrogen deficiency is similar in appearance but shows up on the older tissue first.

Cotton - Chlorosis

Symptoms
Symptoms start on younger leaves which become pale green or yellow. The veins stay green for a while, but at severe deficiency they become chlorotic, too. Leaf size as well as general plant size are reduced with few vegetative branches and small bolls.

Reasons
Sulfur deficiency on leaves Nitrogen deficiency is similar in appearance but shows up on the older tissue first.

Cotton - Chlorosis

Symptoms
Symptoms start on younger leaves which become pale green or yellow. The veins stay green for a while, but at severe deficiency they become chlorotic, too. Leaf size as well as general plant size are reduced with few vegetative branches and small bolls.

Reasons
Sulfur deficiency on leaves (right) Nitrogen deficiency is similar in appearance but shows up on the older tissue first.

Cotton - Chlorosis

Symptoms
Symptoms start on younger leaves which become pale green or yellow. The veins stay green for a while, but at severe deficiency they become chlorotic, too. Leaf size as well as general plant size are reduced with few vegetative branches and small bolls.

Reasons
Sulfur deficiency on leaves (right) Nitrogen deficiency is similar in appearance but shows up on the older tissue first.

Cotton - Chlorosis

Symptoms
Symptoms start on younger leaves which become pale green or yellow. The veins stay green for a while, but at severe deficiency they become chlorotic, too. Leaf size as well as general plant size are commonly reduced, but not in this case.

Reasons
Sulfur deficiency on leaves (right) Nitrogen deficiency is similar in appearance but shows up on the older tissue first.

Sulfur deficiency made worse by

  • Acidic soils
  • Light, sandy soils (leaching)
  • Low organic matter
  • Poorly aerated soils (waterlogged soils
  • ) Areas with low industrial emissions

Sulfur is important for

  • Increased yield
  • More even and earlier maturity

Yara recommended fertilizers for Sulfur

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